IPL
Parts Manual
BH1730SE
30" Dual Stage Snowthrower
Models
Mfg. No.
Description
1696256-00
BH1730SE, B&S 16.5TP 30" Dual Stage Snowthrower (CE)
(2012)
Manual Part No.
1755486
Revision
Rev. Date:
7/13/2012
-
Table Of Contents
PRODUCT COMPONENTS
PAGES
Handles & Controls Group ...................................................................................................................................
Engine & Frame Group ........................................................................................................................................
Auger Housing Group ..........................................................................................................................................
Auger Drive Group ...............................................................................................................................................
Traction Drive Group ............................................................................................................................................
Wheels and Tires Group ......................................................................................................................................
Decals Group .......................................................................................................................................................
Discharge Chute Group .......................................................................................................................................
Gear Case Assembly ...........................................................................................................................................
4
8
10
12
14
16
18
20
22
Torque Specification Chart ..................................................................... Inside Back Cover
Handles & Controls Group
2990564
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
4
1755486
Handles & Controls Group
REF NO PART NO.
0010
0010-10
0010-20
0010-30
0010-40
0010-50
0010-60
0020
0030
0040
0050
0060
0070
0080
0090
0100
0110
0120
0135
0140
0150
0160
0170
0180
0190
0200
0210
0230
0240
0250
0260
0265
0270
0290
0300
0310
0320
0330
0340
0350
0390
0400
0410
QTY. DESCRIPTION
1739686YP
--------1739689YP
1736180YP
--------1739345BSYP
1960556SM
1732471SM
1737274AYP
1737531AYP
1737532AYP
1921333SM
1664847SM
1935048SM
7035744YP
1750299YP
7090391SM
1920397SM
1678392SM
1921962SM
1739783BMYP
1739782BMYP
1733505BMYP
1736360YP
1733095SM
1736542YP
1753529YP
1933896SM
1738124YP
703044
2820263SM
1739290YP
1737331YP
1923701SM
1931277SM
50786MA
1918266SM
1919439SM
1737684YP
1960589SM
1733192SM
1
1
1
2
2
2
2
1
7
1
1
1
1
2
2
2
4
2
2
4
2
4
1
1
1
1
1
2
2
2
2
4
2
1
1
1
3
1
1
1
1
1
1
LIGHT BAR ASSEMBLY
LENS, RH (Not a serviceable part, included with Ref. No. 0010)
LENS, LH (Not a serviceable part, included with Ref. No. 0010)
LAMP, Halogen, 12V 20W
SOCKET & GASKET ASSEMBLY, Headlight
GASKET, Single, Twin Light (Not a serviceable part, included with Ref. No. 0010-40)
BEZEL, Light, Panel (Not a serviceable part, included with Ref. No. 0010)
COVER, Panel, Remote Deflector
SCREW, Pan Head, Torx, 1/4-20 x 3/4, Taptite
CABLE & SPRING ASSEMBLY, Auger Drive, RH
HANDLE, Lower
HANDLE, Upper, R.H.
HANDLE, Upper, L.H.
CAPSCREW, Hex Head, 5/16-18 x 1, G5
CAPSCREW, Hex Washer Head Taptite, 5/16-18 x 3/4
NUT, Hex Flange Two Way Locking, 5/16-18
WINGKNOB, 5/16-18
BOLT, Carriage, Locking, 5/16-18 x 2-1/4
Washer, Locking, Internal Teeth, 5/16
NUT, Hex Lock, 1/4-20
SPACER
CAPSCREW, Hex Head, 1/4-20 x 1-3/4, G5
LEVER, Clutch, RH
LEVER, Clutch, LH
BRACKET, Pivot, Free Hand
ROD, Hold Down, 5/32 Dia., 5-5/8 Lg
SPACER, 1/4 ID
SPACER, Stepped
BOLT, Shoulder, Hex Washer Head, 1/4 x 1-1/2
NUT, Nylock, 10-24
HAND GRIP
SCREW, Square, 1/8-20 x 1/32
NUT, Hex, 5/16-24
BALL JOINT, Quick Release
ROD, Speed Select
CAPSCREW, Hex Head, 3/8-16 x 2, G5
NUT, Hex Flange Whiz Lock, 5/16-18
SPRING, 1/2 Dia. x 3/4
WASHER, 3/8 x 13/16 OD
NUT, Hex Lock, 3/8-16
BRACKET, Controls
SCREW, Round Head Phillips, #10-24 x 3/4
KNOB, Slot Speed
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
5
1755486
Handles & Controls Group
2990564
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
6
1755486
Handles & Controls Group
REF NO PART NO.
0420
0430
0440
0450
0460
0470
0480
0490
0495
0500
0510
0520
0540
0550
0560
0570
0575
0580
0610
0620
0630
0640
0650
0660
0670
0700
0750
0760
0800
0810
0820
0940
1050
QTY. DESCRIPTION
1933896SM
1736836YP
1502113MA
308146MA
313441MA
1736363YP
2108360SM
1921962SM
5025391SM
1931333SM
1739500BMYP
1701011SM
1724037SM
1931317SM
1960685SM
1750773YP
1750774YP
1752242YP
1739663BMYP
1739664BMYP
1739666BMYP
1739483AYP
1739484AYP
1739861AYP
7091105YP
1921319SM
1737552YP
7091530SM
1737510YP
1737511YP
7073145YP
71071MA
7091189YP
1
1
1
1
1
1
1
2
3
3
1
5
1
1
1
1
1
1
1
1
1
1
1
1
4
4
1
1
2
1
2
2
2
NUT, Nylock, 10-24
SPEED LEVER ASSEMBLY
CABLE, Handle
BOOT, Spring End Cover, 4-1/16 Lg
BRACKET, Cable Adjusting
ROD & SPRING ASSEMBLY
SPRING, Compression, 017/32 ID x 2-1/4 Lg
CAPSCREW, Hex Washer Head, Taptite, 1/4-20 x 1-3/4
NUT, Hex Flange, 1/4-20
BOLT, Carriage, 5/16-18 x 3/4
SUPPORT, Dash
TIE, Self Locking, 7-5/16 Lg
RESISTOR BLOCK
BOLT, Carriage, 1/4-20 x 3/4
NUT, 1/4-20
HARNESS
HARNESS, High/Off/Low, HHG
SWITCH, Heated Hand Grip, On/Off
BRACKET, Mounting, Dash, R.H.
BRACKET, Mounting, Dash, L.H.
BRACKET, Light Mounting
POD, Chute Rotation, RH
POD, Deflector Control
BRACKET, Switch
SCREW, Hex Washer Machine, #10-16 x 1/2
WASHER, 1/4 x 5/8 OD
BRACE
BOLT, Carriage, 1/4-20 x 3/4
CABLE, Steering Control
CABLE, Traction Drive
BOLT, Oval Head, 10-24 x 1-1/2
WASHER, 11/32 x 11/16 OD
BOLT, Carriage. 5/16-18 x 2, G2
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
7
1755486
Engine & Frame Group
2990429
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
8
1755486
Engine & Frame Group
REF NO PART NO.
0010
0010-10
0010-20
0010-30
0050
0080
0100
0110
0115
0120
0125
0130
0140
0170
0171
0176
0177
0178
0179
0180
0190
0191
0192
0193
0200
0210
0220
0230
0250
0260
0270
0280
0290
0300
0310
0320
0330
0350
0360
0370
0420
0520
QTY. DESCRIPTION
21M314-0129-H1
795027
796384
699234
75246GS
1737509YP
1916965SM
2860768YP
2157427SM
1737220YP
1733968YP
585416MA
1737377YP
1960684SM
1931335SM
1960151SM
1733095SM
1737329YP
1737328AYP
1737297YP
1737347AYP
1922837SM
579860MA
192432GS
1502120MA
1960251SM
585781MA
1737296YP
1960027SM
1733451SM
0031X6MA
1736381YP
1737221AYP
1927429SM
1737350YP
1737106BSYP
1754136BSYP
1664847SM
1750551YP
1751355YP
7023590SM
1751106YP
1
1
1
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
2
1
1
7
1
1
1
19
1
2
1
1
* ENGINE, 16.5TP Briggs & Stratton (Engine Model: 21M314-0129-H1)
CAP, Fuel
GUARD, Muffler (Includes Ref. No 0010-30)
SCREW, Muffler Guard
CAPSCREW, Hex Head, Trilobular, 3/8-16 x 1-1/4
PULLEY ASSEMBLY
LOCKWASHER, Spring 3/8
CAPSCREW, Hex Head, 3/8-24 X 1-3/4, G8
KEY, Parallel
V-BELT, Multi Speed
PULLEY ASSEMBLY
BELT, Auger, V4L 38.10 MF 05-10B
STOP, Belt
NUT, Hex KEPS, Conical Washer, 5/16-18
BOLT, Carriage, 5/16-18 x 1 G5
WASHER, 1/4 x 1-1/4 x 1/16
SPACER, Powdered Metal
BELLCRANK
BRACKET, Lower
BRACKET, Support, Auger Idler
BRACKET, Guide Wheel
CAPSCREW, Hex Head, 1/4-20 x 1-1/2 G5
SPOOL CABLE, Auger Control
NUT, Lock, Serrated, 1/4-20
IDLER, Plastic, Ball Bearing
NUT, Hex Jam, 3/8-16
BOLT, Carriage, 3/8-16 x 1-1/4
IDLER, Auger
WASHER, 1/2” Flat
BRACKET & HUB ASSEMBLY, Spring
PIN, Hair
PIN, Clevis
PANEL, Bottom
SCREW, Hex Washer Head Taptite, 1/4-20 x 5/8
SPRING, Torsional
FRAME BOX
PLATE, Engine Mount
SCREW, Hex Washer Head Taptite, 5/16-18 x 3/4
COVER, Belt
SCREW, Hex Washer Head, SEMS, Taptite, 1/4-20 x 3/4
COTTER PIN, 1/4" Self Locking
OIL DRAIN ASSEMBLY
Footnotes
Note* To verify your specific engine model, please reference the ID Tag located on your engine. See your local Briggs &
Stratton distributor for parts and service.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
9
1755486
Auger Housing Group
2990425
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
10
1755486
Auger Housing Group
REF NO PART NO.
0010
0050
0060
0070
0080
0090
0100
0110
0120
0130
0140
0150
0160
0170
0180
0190
0200
QTY. DESCRIPTION
1687684YP
1739305YP
1732385BMYP
1960699SM
1935048SM
7091790YP
1750222YP
1960687SM
53757MA
25X021MA
15X146MA
1736620YP
1960569SM
1736094YP
2108202SM
1665982SM
1931333SM
1
3
1
7
7
4
2
4
2
4
2
2
2
1
1
1
3
AUGER HOUSING, 30
NUT, Hex Flange, ESNA, 5/16-18
BLADE, Scraper, 30
BOLT, Carriage, Short Neck, 5/16-18 x 5/8, G5
NUT, Hex Flange, Two Way Lock, 5/16-18
BOLT, Carriage, Short Neck, 3/8-16 x 1-1/4
SKID SHOE
NUT, Hex Flange, ESNA, 3/8-16
BEARING, Auger Shaft
SCREW, Hex Washer Head, Taptite, 5/16-18 x 3/4
NUT, Nylock, 10 x 24
CLAMP
SCREW, Truss Head Torx, #10-24 x 3/8
BRUSH, Cleanout
BEARING, Ball, 3/4 ID x 1-3/4 OD
RETAINER, Bearing
BOLT, Carriage, Short Neck, 5/16-18 x 3/4, G5
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
11
1755486
Auger Drive Group
2990426_2990552
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
12
1755486
Auger Drive Group
REF NO PART NO.
0010
0020
0070
0080
0090
0100
0110
0130
0150
0180
0220
0220-40
0230
--
QTY. DESCRIPTION
1739295YP
1739292YP
1755492YP
2818312SM
1739094AYP
1739073YP
1924856SM
7090848SM
1752220YP
1733406SM
1737079BJYP
10104MA
1737078BJYP
1739821YP
2
2
1
2
1
1
3
3
1
2
1
1
1
1
PIN, Sheer, 1/4 x 1-3/4
PIN, Cotter, 3/16
GEAR CASE ASSEMBLY, 30"
KEY, Woodruff
IMPELLER
HUB, Impeller
SCREW, Hex Washer Head, Taptite, 5/16-18 x 1/2
SET SCREW, Socket Head, 5/16-18 x 1/2
PULLEY, Auger
SPACER, Auger, 1"
AUGER, LH, 30" (Includes Ref. 0220-40)
FITTING, Grease
AUGER, RH, 30" (Includes Ref. 0220-40)
KIT, Shear Bolt (Includes Ref. Nos. 0010 & 0020)
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
13
1755486
Traction Drive Group
2987638
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
14
1755486
Traction Drive Group
REF NO PART NO.
0200
0210
0220
0230
0240
0250
0260
0300
0310
0320
0330
0340
0350
0355
0420
0430
QTY. DESCRIPTION
1733972YP
1737267AYP
7091557SM
1960251SM
1737330YP
7023590SM
1737310YP
1737311YP
1737309YP
1928352SM
1736396YP
53263MA
1737742YP
7013847YP
1664847SM
1737686YP
1
2
4
4
1
2
1
2
2
4
2
2
2
4
4
4
TRANSMISSION, General Transmission H2
BRACKET
CAPSCREW, Hex Head, 3/8C x 2-3/4 GR5
NUT, Hex Jam, 3/8-16
ROD, Speed Select
COTTER PIN, 1/4" Self Locking
TUBE, Support
GEAR, Drive
AXLE
NUT, Hex Flange, Whiz Lock Large, 3/8-16
RETAINER, Bearing
BEARING, Ball
RING, Retaining
RETAINER, Bolt 3/8"
SCREW, Hex Washer Head Taptite, 5/16-18 X 3/4
BOLT, Carriage, FH GR 5, 3/8-16 x 3/4
Footnotes
Note* See Transmission Assembly Group for detailed service parts.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
15
1755486
Wheels and Tires Group
2990431
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
16
1755486
Wheels and Tires Group
REF NO PART NO.
0010
0020
0010-20
0030
0040
QTY. DESCRIPTION
1754484YP
1754485YP
2172353SM
577015MA
15X145MA
1
1
2
2
2
WHEEL & TIRE ASSEMBLY, L.H. (Includes Ref. No. 0010-20)
WHEEL & TIRE ASSEMBLY, R.H. (Includes Ref. No. 0010-20)
VALVE STEM & CAP
BOLT, Hex, 1/4-20 x 1-3/4
NUT, Hex Nylock, 1/4-20
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
17
1755486
Decals Group
2990432
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
18
1755486
Decals Group
REF NO PART NO.
0040
0050
0060
0070
0085
0095
0105
0110
0130
QTY. DESCRIPTION
1727207SM
1737867YP
1751429YP
1751430YP
1754837YP
1751582YP
1754509YP
1750926YP
1750927YP
1
1
1
1
1
1
1
1
1
DECAL, Chute Warning, Export
DECAL, Danger Auger Icons
DECAL, Auger Control Symbols
DECAL, Traction Control Symbols
DECAL, Controls
DECAL, Gear Shift
DECAL, Auger Housing, BH1730SE
DECAL, Logo, Chute, LH
DECAL, Logo, Chute, RH
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
19
1755486
Discharge Chute Group
2989774
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
20
1755486
Discharge Chute Group
REF NO PART NO.
0010
0030
0035
0040
0050
0060
0070
0090
0140
0150
0160
0200
0230
0290
0300
0310
0320
0330
0340
0350
0360
0530
0540
0550
0560
0570
1090
1100
QTY. DESCRIPTION
1728967SM
1739621YP
7091552SM
1925592SM
1752877YP
7011938SM
1960001SM
1737378YP
1701011SM
1733601SM
1752841AYP
1739309YP
1737962BMYP
1738267BMYP
1737941YP
1960715SM
1960694SM
1737379YP
1738244YP
1738245YP
5025154SM
1733475SM
1752883YP
1738174YP
1960140SM
1925003SM
1931317SM
1960685SM
1
3
3
1
1
3
6
1
1
2
1
1
1
1
1
2
2
1
1
1
1
1
1
2
2
2
3
3
PINION
SCREW, Torx Button Head, M5 x .8 x 14
WASHER, Flat, 7/32
SCREW, Hex Washer Head, Taptite, 1/4-20 x 3/4
COVER, Electric Chute Rotation
RETAINER, Spout
SCREW, Hex Washer Head, Plastite, 10-14 x 5/8
SWITCH, Chute Rotation
TIE, Self Lock
DECAL, Hinge
CHUTE
MOTOR, Chute Rotation
GEAR, Chute
BRACKET, Weld Stud
MOTOR, Chute Deflector
SCREW, Truss Head, Torx Drive, 1/4-20 x 3/4
NUT, Hex Flange, ESNA, 1/4-20
SWITCH, Chute Deflector
WASHER, Rubber
NUT, LH
WASHER, 1/4
GUARD, Chute
BRACKET, Chute Guard
GROMMET
NUT, Push, 3/16
SCREW, Hex Washer Head, Taptite, 1/4-20 x 1/2
BOLT, Carriage, Short Neck, 1/4-20 x 3/4, G5
NUT, Hex KEPS, 1/4-20
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
21
1755486
Gear Case Assembly
1752897
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
22
1755486
Gear Case Assembly
REF NO PART NO.
0300
0301
0303
0304
0305
0306
0310
0311
0312
0313
0314
0315
0316
0320
0321
0322
0323
0324
0326
0327
0330
0340
0380
QTY. DESCRIPTION
1739063YP
1739064YP
910828MA
71100MA
330434MA
53749MA
780151MA
53743MA
53748MA
1754558YP
897MA
1752500YP
73905MA
53737MA
583126MA
48275MA
50684MA
48275MA
50795MA
53732MA
53731MA
1751544YP
1752515YP
1
1
7
8
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
GEARCASE, RH
GEARCASE,LH
BOLT, Hex, 5/16-24 x 1
NUT, Hex Flange, 5/16-24, G5
CAPSCREW, Hex Head, 5/16-24 x 1-1/2
PLUG, 1/4-18
SEAL, Oil
Bearing, Sleeve, 1 x 1-1/4 x 1
WASHER, Flat, 1
SHAFT, Auger
GASKET
GEAR, Worm, 22T 3.125 OD
KEY, Woodruff
RING, Quad
BEARING, Flange 3/4 ID x 1.128 OD
WASHER, Thurst
BEARING, Roll Thrust, 3/4 ID x 1-1/4 OD
WASHER, Thrust
KEY, Hi-Pro
WORMGEAR, 1-3/4 OD, 1-1/2"
BEARING, Sleeve, 3/4 ID x 7/8 OD
SHAFT, Impeller
RING, Retaining, 3/4
Footnotes
The above parts group applies to the following Mfg. Nos.:
1696256-00 - BH1730SE
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
23
1755486
Hardware Identification & Torque Specifications
Torque Specification Chart
Torque Specification Chart
FOR STANDARD METRIC MACHINE HARDWARE (Tolerance ± 20%)
Property
Class
5.6
8.8
Class 5.6
10.9
SAE Grade 2
Class 12.9
Size Of
Hardware
in/lbs
Size Of
Hardware ft/lbs
Nm.
in/lbs
ft/lbs
Nm.
in/lbs
ft/lbs
Nm.
in/lbs
ft/lbs
Nm.
M3
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
M33
M36
M39
.56
1.28
2.50
4.3
7.1
10.5
21
36
58
88
121
171
230
295
435
590
800
1030
1340
13.44
30.72
60.96
7.3
12.1
17.7
35
61
101
147
202
290
390
497
733
995
1349
1740
2249
1.28 19.2
2.90 43.44
5.75 5.97
9.9 10.3
16.5 16.9
25
24
50
48
83 86.2
136
132
210
200
287
275
405
390
559
530
708
375
995 1032
1350 1401
1830 1902
2360 2441
3050 3163
1.80
4.10
8.10
14
23
34
67
117
185
285
390
550
745
960
1400
1900
2580
3310
4290
22.92
52.56
7.15
12.1
19.9
29
59
103
162
250
346
486
656
840
1239
1681
2278
2935
3798
2.15
4.95
9.7
16.5
27
40
81
140
220
340
470
660
890
1140
1680
2280
3090
3980
5150
5.88
13.44
26.4
44.64
5.2
7.7
15
26
42
64
89
126
169
217
320
435
590
759
988
20
10
30
40
50
60
80
70
Body
Diameter
Screw, M8- 1.25 x 25
Thread
Diameter (mm)
Threads
Inside
Diameter (in) per inch
1/4
1/2
1
3/4
2.1
2.3
3.1
3.5
7.6
8.6
15.0
16.3
27.2
31.3
40.8
47.6
68.0
74.8
88.4
102.0
122.4
136
217.6
244.8
190.4
210.8
299.2
326.4
Body
Length (mm)
Body
Length (in)
in/lbs
ft/lbs
30
31
43
49
8
10
17
19
30
35
50
55
75
90
110
120
150
180
260
300
400
440
580
640
SAE Grade 8
Nm.
in/lbs
ft/lbs
Nm.
3.4
3.5
4.9
5.5
10.9
13.6
23.1
25.8
40.8
47.6
68.0
74.8
102.0
122.4
149.6
163.2
204.0
244.8
353.6
408.0
544.0
598.4
788.8
870.4
41
43
60
68
12
14
25
29
45
50
70
80
110
120
150
170
220
240
386
420
600
660
900
1,000
4.6
4.9
6.8
7.7
16.3
19.0
34.0
34.0
61.2
68.0
95.2
108.8
149.6
163.2
204.0
231.2
299.2
326.4
525.0
571.2
816.0
897.6
1,244.0
1,360.0
NOTES
1. These torque values are to be used for all hardware
excluding: locknuts, self-tapping screws, thread forming
screws, sheet metal screws and socket head setscrews.
2. Recommended seating torque values for locknuts:
a. for prevailing torque locknuts - use 65% of grade 5
torques.
b. for flange whizlock nuts and screws - use 135% of
grade 5 torques.
3. Unless otherwise noted on assembly drawings, all torque
values must meet this specification.
Screw, 1/2- 16 x 2
Nut, 1/2-16
0
Distance between
threads (mm)
Threads
per inch
Thread
Diameter (mm)
Body
Diameter
19
20
27
31
66
76
11
12
20
23
30
35
50
55
65
75
90
100
160
180
140
155
220
240
SAE Grade 5
Nm.
100
90
Body Length
Nut, M8
in/lbs
ft/lbs
8-32
8-36
10-24
10-32
1/4-20
1/4-28
5/16-18
5/16-24
3/8-16
3/8-24
7/16-14
7/16-20
1/2-13
1/2-20
9/16-12
9/16-18
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
7/8-14
1-8
1-12
The guides and ruler furnished below are designed to
help you select the appropriate hardware.
0
No
Marks
Hardware
Grade
12.9
Class 10.9
Class 8.8
FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)
1/4
1/2
2
3/4
1/4
1/2
3
3/4
1/4
1/2
4
Common Hardware Types
3/4
Hex Head Capscrew
Washer
Standard Hardware Sizing
When a washer or nut is identified as 1/2” (M8), this is
the Nominal size, meaning the inside diameter is 1/2 inch
(8mm metric thread diameter); if a second number is present
it represents the threads per inch (distance between threads).
When bolt or capscrew is identified as 1/2 - 16 x 2” (M8 - 1.25 x 50 ),
this means the Nominal size, or body diameter is 1/2 inch (8mm
metric thread diameter), the second number,16, represents the
threads per inch, (1.25 thread diameter). The final number is the
body length of the bolt or screw, 2 inches (50mm).
Lockwasher
Carriage Bolt
Hex Nut
Wrench & Fastener Size Guide
1/4” Bolt or Nut
Wrench—7/16”
5/16” Bolt or Nut
Wrench—1/2”
3/8” Bolt or Nut
Wrench—9/16”
M6 Bolt or Nut
Wrench—10mm
M8 Bolt or Nut
Wrench—13mm
M10 Bolt or Nut
Wrench—17mm
7/16” Bolt or Nut
1/2” Bolt or Nut
Wrench (Bolt)—5/8”
Wrench—3/4”
Wrench (Nut)—11/16”
M12 Bolt or Nut
Wrench—19mm
M14 Bolt or Nut
Wrench—22 mm
IT IS THE POLICY OF BRIGGS & STRATTON CORP. TO IMPROVE ITS PRODUCTS
WHENEVER IT IS POSSIBLE AND PRACTICAL TO DO SO. WE RESERVE THE RIGHT TO
MAKE CHANGES OR ADD IMPROVEMENTS AT ANY TIME WITHOUT INCURRING ANY
OBLIGATION TO MAKE SUCH CHANGES ON PRODUCTS.
Briggs & Stratton Power Products Group
12301 W. Wirth Street
Wauwatosa, WI, 53222 USA
www.BRIGGSandSTRATTON.com
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
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