Bulk #4-20 Phillips Pan Head 48-2 Thread-Forming Screws for Thermoplastics – Black-Zinc Plated Steel, Baked & Waxed Length:10000 Qty - #4-20 x 3/8" External Tooth Lock Washers feature

External Tooth Lock Washers feature teeth on the outer circumference that dig into the mating surfaces

Durable Material: Marine-grade 316 stainless steel offers exceptional strength and longevity

Reliable Flange Joint Fastener: Engineered for structural steel

Socket Cap Design: Cylindrical head offers maximum clamping pressure in compact spaces

Monster Bolts delivers top-quality coated fasteners designed to last

Bulk #4-20 Phillips Pan Head 48-2 Thread-Forming Screws for Thermoplastics – Black-Zinc Plated Steel, Baked & Waxed Length:10000 Qty - #4-20 x 3/8" External Tooth Lock Washers featureMonster Overview: Drive production efficiency with bulk #4 20 Phillips Pan Head 48 2 Thread Forming Screws from Monster Bolts. The tri lobular Plastite profile plastically flows thermoplastic material to create tough, chip free internal threadsno taps, no cleanup. Each heat treated carbon steel screw is black zinc electro plated and baked to relieve hydrogen embrittlement, then factory wax coated for consistently low seating torque. Fully threaded