5/16” External Tooth Countersunk Lock Washers Steel Flat Head Screw star (100)

Description

The teeth
on these washers firmly grip heads of
82°
flat head countersunk screws to prevent joints from loosening under
vibration.
Zinc-plated steel washers are corrosion resistant in wet
environments.
Washers meet ASME
B18.21.
1 dimensional
standards.
The zinc-plated steel washers also meet standards for material
properties.
100 pieces
5/16” External Tooth Countersunk Lock Washers Black Steel for 5/16 Flat Head or countersunk Screw