Hex Cap Screw, Grade 8, Alloy Steel, Zinc Finish, Coarse Thread, 3/16" Head Height, 7/16" Across Flats, 1/4-20 x 3-3/4"
(Pack of 50)

SKU:613 Item#: 613

Tuff-Torq®

• 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

Read More

Frequently Bought Together

DV_ZoomOriginal_P_517.jpg

Hex Cap Screw Property Class 8.8 M6-1 x 20mm

Item#: 27331
DV_ZoomOriginal_P_517.jpg

Hex Cap Screw Property Class 8.8 M8-1.25 x 40mm

Item#: 27346
DV_ZoomOriginal_P_30583.jpg

Hex Flange Bolt Grade 8 3/8-16 x 1"

Item#: 86393
DV_ZoomOriginal_I_FA65060_WB.jpg

Hex Cap Screw Grade 5 1/2-13 x 1"

Item#: FA65060
DV_ZoomOriginal_P_30579_WB.jpg

Hex Cap Screw Grade 8 3/8-16 x 3"

Item#: FA68040
DV_ZoomOriginal_P_41484.jpg

Hex Cap Screw Grade 5 5/16-18 x 3"

Item#: FA65025
DV_ZoomOriginal_I_80265.jpg

DIN 125A Flat Washer Grade 140 HV M12

Item#: 80265
DV_ZoomOriginal_I_1965.jpg

Open End Rivet Dome Head Aluminum 1/8"

Item#: 1965
DV_ZoomOriginal_P_506_WB.jpg

Self-Drilling Screw Hex Head 1/4-14 x 1"

Item#: 2539
DV_ZoomOriginal_I_1584663.jpg

Inner Panel Rustproofer LV 16.5oz

Item#: 1584663
DV_ZoomOriginal_I_61952.jpg

Cable Tie Hook and Loop Roll 15' Orange

Item#: 61952
DV_ZoomOriginal_P_11753.jpg

High-Strength Double Side Molding Tape 1/2" x 50'

Item#: KT12221
DV_ZoomOriginal_P_517.jpg

Hex Cap Screw Property Class 8.8 M6-1 x 16mm

Item#: 27330
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M8-1.25 x 35mm

Item#: 28688
DV_ZoomOriginal_P_532_WB.jpg

DIN 6921 Hex Flange Bolt Grade 8.8 M8-1.25 x 20mm

Item#: 59412
DV_ZoomOriginal_I_P86117.jpg

Fender and Bumper Push-Type Retainer Nylon 18mm

Item#: P86117
DV_ZoomOriginal_I_P58130.jpg

Hex Head Sheet Metal Screw with 16mm Washer Steel

Item#: P58130
DV_ZoomOriginal_I_P85035.jpg

Air Distributor Defroster Push-Type Retainer

Item#: P85035

Product 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

Technical Specifications

Item#: 613
Style Premium
Diameter 1/4 "
Thread Pitch 20
Thread Coarse
Length 3-3/4 "
Type Hex Cap Screw
Across Flats 7/16 "
Material Alloy Steel
Grade 8
Finish Bright Zinc
Tensile Strength 150,000 PSI
Head Style High Hex
Head Height 3/16 "
Thread Form UNJ
Thread Length Partial
Thread Length Minimum 3/4 "
UNSPSC #: 31161501
TAA Compliant: Yes
Weight: 2.9 lb

Product Restrictions

Your Recently Viewed Items