Bulk Regular Split Lock Washers – Carbon Thru-Hardened, Made in USA – Monster Bolts purple Sleek Button Head: Low-profile dome

Sleek Button Head: Low-profile dome head provides a wide bearing surface and clean finish

Durable Fasteners for Mechanical and Industrial Applications

Need other 45° Plastite sizes or finishes

no broken taps—while the 82° countersunk head seats flush for snag-free

Hardness: Rated at 200 HV for optimal strength

Bulk Regular Split Lock Washers – Carbon Thru-Hardened, Made in USA – Monster Bolts purple Sleek Button Head: Low-profile domeMonster Overview Keep your assemblies tight and secure with Regular Split Lock Washers Carbon Thru Hardened from Monster Bolts. These washers are Made in the USA and engineered to provide a spring like locking action that helps resist loosening caused by vibration, shock, and thermal cycling. Manufactured from thru hardened carbon steel, these split lock washers deliver consistent performance in demanding applications, including machinery, equipment