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Home > Fasteners > Bolts > Cap Screws Print email

Tuff-Torq® Hex Cap Screw Grade 8 Alloy Steel 3/8-16 x 3/4"

Tuff-Torq® - Hex Cap Screw, Grade 8, Alloy Steel, Zinc Finish, Coarse Thread, 9/32" Head Height, 9/16" Across Flats, 3/8-16 x 3/4" (Pack of 1) 

Item#: X631

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Standard Pack: 1   ea.

Ship Weight: 2.71

Brand: Tuff-Torq®

Usually Ships: Today

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Tuff-Torq® Hex Cap Screw Grade 8 Alloy Steel 3/8-16 x 3/4" - X631
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Tuff-Torq® Hex Cap Screw Grade 8 Alloy Steel 3/8-16 x 3/4" - X631
Tuff-Torq® Hex Cap Screw Grade 8 Alloy Steel 3/8-16 x 3/4" - X631
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 3/8" UNC - CT146A03

Item#: CT146A03
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Hex Cap Screw Assortment Grade 8 3/8" UNC - CT146A03BL

Item#: CT146A03BL
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A

Item#: CT146A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A56

Item#: CT146A56
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A72

Item#: CT146A72
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A80

Item#: CT146A80
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Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146ABL

Item#: CT146ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A56BL

Item#: CT146A56BL
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Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A72BL

Item#: CT146A72BL
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Hex Cap Screw Assortment Grade 8 1/4 to 1/2" - CT146A80BL

Item#: CT146A80BL
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Universal Assortment Fastener Starter Kit - CT162A1

Item#: CT162A1
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Universal Assortment Electrical Starter Kit - CT162A2

Item#: CT162A2
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Universal Assortment Fluid Power Starter Kit - CT162A3

Item#: CT162A3
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Universal Assortment Fastener Starter Kit - CT162A1BL

Item#: CT162A1BL
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Universal Assortment Electrical Starter Kit - CT162A2BL

Item#: CT162A2BL
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Universal Assortment Fluid Power Starter Kit - CT162A3BL

Item#: CT162A3BL
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT156A

Item#: CT156A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT156A72

Item#: CT156A72
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT156A80

Item#: CT156A80
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT166A

Item#: CT166A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT166A80

Item#: CT166A80
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT176A

Item#: CT176A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT176A80

Item#: CT176A80
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT156ABL

Item#: CT156ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT156A72BL

Item#: CT156A72BL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT156A80BL

Item#: CT156A80BL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT166ABL

Item#: CT166ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT166A80BL

Item#: CT166A80BL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT176ABL

Item#: CT176ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT176A80BL

Item#: CT176A80BL
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT848A

Item#: CT848A
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT848ABL

Item#: CT848ABL
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT186A

Item#: CT186A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT186A80

Item#: CT186A80
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 1" - CT376A

Item#: CT376A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 1" - CT376A80

Item#: CT376A80
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT186ABL

Item#: CT186ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 3/4" - CT186A80BL

Item#: CT186A80BL
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Hex Cap Screw Assortment Grade 8 1/4 to 1" - CT376ABL

Item#: CT376ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 1" - CT376A80BL

Item#: CT376A80BL
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 7/16" - CT503A

Item#: CT503A
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Tuff-Torq® Hex Cap Screw Assortment Grade 8 1/4 to 7/16" - CT503A80

Item#: CT503A80
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Hex Cap Screw Assortment Grade 8 1/4 to 7/16" - CT503ABL

Item#: CT503ABL
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Hex Cap Screw Assortment Grade 8 1/4 to 7/16" - CT503A80BL

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Universal Shop Set-Up Assortment, Truck/Trailer and Fleet Maintenance - CT16275A

Item#: CT16275A
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Universal Shop Set-Up Assortment, Truck/Trailer and Fleet Maintenance - CT16275ABL

Item#: CT16275ABL
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Military Kit – Deployable Fastener Pack - MCT2000

Item#: MCT2000
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Hex Cap Screw Assortment Grade 8 - CT16274

Item#: CT16274
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Hex Cap Screw Assortment Grade 8 - CT16274BL

Item#: CT16274BL
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Universal Shop Set-Up Assortment - CT16274ABL

Item#: CT16274ABL
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Universal Shop Set-Up Assortment - MT16274ABL

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California Prop 65 WARNING California Proposition 65: WARNING: Cancer and Reproductive Harm -  www.P65Warnings.ca.gov

• Most versatile, best value for standard maintenance operations
• High-strength matched component fastening system
• Fatigue/vibration-resistant UNJ thread design
• 20% higher-than-normal wrenching surface for increased safety and even distribution of torque forces
• Heat-treated, quenched and tempered
• Perma Plated for superior corrosion protection
• Proprietary head marking for improved traceability
• Trailing thread does not enter the extrusion angle
• Increased length of chamfer allows easier alignment and assembly
• Matched strength nuts, flat washers and lock nuts available
• Minimum 150,000 PSI tensile strength
• Manufactured to meet or exceed Grade 8 strength requirements
Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2

ITEM# DESCRIPTION QTY
631 Hex Cap Screw, Grade 8, Alloy Steel, Zinc Finish, Coarse Thread, 9/32" Head Height, 9/16" Across Flats, 3/8-16 x 3/4" 70
X631
Tuff-Torq® Hex Cap Screw Grade 8 Alloy Steel 3/8-16 x 3/4"
Hex Cap Screw
Premium
3/8 "
16
Coarse
3/4 "
9/16 "
Alloy Steel
8
Zinc
150,000 PSI
High Hex
9/32 "
UNJ
Full
Full
31161501
Yes

Description

• Most versatile, best value for standard maintenance operations
• High-strength matched component fastening system
• Fatigue/vibration-resistant UNJ thread design
• 20% higher-than-normal wrenching surface for increased safety and even distribution of torque forces
• Heat-treated, quenched and tempered
• Perma Plated for superior corrosion protection
• Proprietary head marking for improved traceability
• Trailing thread does not enter the extrusion angle
• Increased length of chamfer allows easier alignment and assembly
• Matched strength nuts, flat washers and lock nuts available
• Minimum 150,000 PSI tensile strength
• Manufactured to meet or exceed Grade 8 strength requirements
Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2

ITEM#
DESCRIPTION
QTY
631
Hex Cap Screw, Grade 8, Alloy Steel, Zinc Finish, Coarse Thread, 9/32" Head Height, 9/16" Across Flats, 3/8-16 x 3/4"
70

Tech Specs

X631
Tuff-Torq® Hex Cap Screw Grade 8 Alloy Steel 3/8-16 x 3/4"
Hex Cap Screw
Premium
3/8 "
16
Coarse
3/4 "
9/16 "
Alloy Steel
8
Zinc
150,000 PSI
High Hex
9/32 "
UNJ
Full
Full
31161501
Yes

Restrictions

California Prop 65 WARNING California Proposition 65: WARNING: Cancer and Reproductive Harm -  www.P65Warnings.ca.gov

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