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Maintenance Engineered Fastening Systems

ANSI B18.2.2 Hex Nut, Grade 8, Alloy Steel, Zinc Finish, Fine Thread, 15/16" Across Flats, 35/64" Thickness, 5/8-18
(Pack of 25)

Item#: A116

Tuff-Torq®

• High-strength fine grain steel
• Three-stage heat treating
• Full finished nut dimensions
• Improved torque reliability
• Greater load consistency
• Six equally-spaced radial lines and Lawson logos identify matched strength Tuff-Torq® Nuts
• Meets SAE J995 Grade 8 strength requirements
• ANSI Class 2B thread fit
• Specifically designed for use with Lawson’s Tuff-Torq® Cap Screws to provide a matched strength fastening system

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Catalog page#: 11-11

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Product Description

• High-strength fine grain steel
• Three-stage heat treating
• Full finished nut dimensions
• Improved torque reliability
• Greater load consistency
• Six equally-spaced radial lines and Lawson logos identify matched strength Tuff-Torq® Nuts
• Meets SAE J995 Grade 8 strength requirements
• ANSI Class 2B thread fit
• Specifically designed for use with Lawson’s Tuff-Torq® Cap Screws to provide a matched strength fastening system

Technical Specifications

Item#: A116
Diameter 5/8 "
Thread Pitch 18
Type Hex Nut
Grade 8
Finish Bright Zinc
Material Alloy Steel
Thickness 35/64 "
Across Flats 15/16 "
Thread Fine
Size 5/8-18 "
Specifications ANSI B18.2.2
Quantity Per Package 25.0000
UNSPSC #: 31161727
TAA Compliant: Yes
Weight: 1.73 lb

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