Home Fasteners Bolts Cap Screws Hex Cap Screw Grade 9 Alloy Steel 7/16-14 x 4"
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Maintenance Engineered Fastening Systems

Hex Cap Screw, Grade 9, Alloy Steel, Zinc Finish, Coarse Thread, 21/64" Head Height, 5/8" Across Flats, 7/16-14 x 4"
(Pack of 25)

Item#: A658

Tru-Torq®

• Ultra-high-strength matched component fastening system
• 20% stronger than Grade 8
• 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
• Diameter marked on head for easy identification
• 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 180,000 PSI tensile strength
• Exceeds SAE, ASTM and Military Grade 8 strength requirements
• Designed for the most demanding maintenance requirements
• For use in critical applications
Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2

Read More
Check Availability

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

Catalog page#: 3-6

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Product Description

• Ultra-high-strength matched component fastening system
• 20% stronger than Grade 8
• 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
• Diameter marked on head for easy identification
• 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 180,000 PSI tensile strength
• Exceeds SAE, ASTM and Military Grade 8 strength requirements
• Designed for the most demanding maintenance requirements
• For use in critical applications
Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2

Technical Specifications

Item#: A658
Style Premium
Diameter 7/16 "
Thread Pitch 14
Thread Coarse
Length 4 "
Type Hex Cap Screw
Across Flats 5/8 "
Material Alloy Steel
Grade 9
Finish Bright Zinc
Tensile Strength 180,000 PSI
Head Style High Hex
Head Height 21/64 "
Thread Form UNJ
Thread Length Partial
Thread Length Minimum 1-1/8 "
UNSPSC #: 31161501
TAA Compliant: Yes
Weight: 4.72 lb

Product Restrictions

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

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