Maintenance Engineered Fastening Systems

Hex Cap Screw, Grade 9, Alloy Steel, Zinc Finish, Coarse Thread, 13/16" Head Height, 1-11/16" Across Flats, 1-1/8-7 x 6"
(Pack of 1)

SKU:A21158 Item#: A21158

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#: 11-7

Frequently Bought Together

Product Description

Technical Specifications

Item#:	A21158
Diameter	1-1/8 "
Thread Pitch	7
Thread	Coarse
Length	6 "
Type	Cap Screws
Across Flats	1-11/16 "
Material	Alloy Steel
Grade	9
Finish	Bright Zinc
Tensile Strength	180,000 PSI
Head Style	High Hex
Head Height	13/16 "
Thread Form	UNJ
Thread Length	Partial
Thread Length Minimum	2-1/2 "
UNSPSC #:	31161501
TAA Compliant:	Yes
Weight:	2.07 lb