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Flat washers feature a hole in the center matching the bolt they're used with. Locking washers, equipped with recessed features, prevent loosening. Some types include split lock washers, which use compression to prevent loosening; wave washers with a wavy surface for grip; and spring washers, which absorb vibration and shock. SAE/USS washers are designed for SAE (US) or USS (UK and others) fasteners. Finally, machine screw washers pair with machine screws to fasten metal pieces together.
ABE-Fasteners-Bolt-Nut-Screw-Washer-General-Washers
Unit of Measure
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Item #

Item Name

Brand

Measurement

Material

Inside Diameter

Outside Diameter

A370-887-20 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?3/4 N/A 2?3/4
A694-22-90-LP N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 2 N/A 2?3/4
A370-887-3 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?3/4 N/A 2?3/4
A370-888-7 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 2 N/A 2?3/4
A694-22-20 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 2 N/A 2?3/4
A694-22-3 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 2 N/A 2?3/4
A370-886-60-LP N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?3/4 N/A 2?3/4
A370-886-48-LP N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?3/4 N/A 2?3/4
A370-887-10 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?3/4 N/A 2?3/4
A370-886-10 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-24 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-15 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-30 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-60 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A370-886-3 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-7 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-48 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A370-1015 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-6 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-5 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A370-886-8 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-90-LP N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A694-21-8 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A370-886-15 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
A370-886-12 N/A Washers - Flat, Locking, SAE/USS, Machine Screw and More N/A Seastrom N/A Unified N/A Stainless N/A 1?1/2 N/A 2?1/8
Unit of Measure
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