Home Fasteners Bolts Cap Screws Hex Cap Screw Grade 9 Alloy Steel 9/16-12 x 4"
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Maintenance Engineered Fastening Systems

Hex Cap Screw, Grade 9, Alloy Steel, Zinc Finish, Coarse Thread, 27/64" Head Height, 13/16" Across Flats, 9/16-12 x 4"
(Pack of 10)

Item#: A689

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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Check Availability

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

Catalog page#: 3-7

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Item#: FA68401
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Hex Nut Grade 8 Steel 1/2-13

Item#: FA68404
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Self-Drilling Screw Hex Head #12-14 x 1"

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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#: A689
Style Premium
Diameter 9/16 "
Thread Pitch 12
Thread Coarse
Length 4 "
Type Hex Cap Screw
Across Flats 13/16 "
Material Alloy Steel
Grade 9
Finish Bright Zinc
Tensile Strength 180,000 PSI
Head Style High Hex
Head Height 27/64 "
Thread Form UNJ
Thread Length Partial
Thread Length Minimum 1-3/8 "
UNSPSC #: 31161501
TAA Compliant: Yes
Weight: 3.25 lb

Product Restrictions

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

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