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)

SKU:A658 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

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

Catalog page#: 11-6

Frequently Bought Together

Product Description

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