Manufacturer: Hirosugi Instruments Co., Ltd.
Model: WSB-300SPE

Specification

①Main unit

Material

Free-cutting brass (C3604BD)
Cadmium content less than 75 ppm

process

Nickel plating (Ni)

②Spring washer

Material

Phosphor bronze (C5191W)

process

Nickel plating (Ni)

③Flat washer

Material

Brass (C2680R)

process

Nickel plating (Ni)

Exterior drawings

Thread diameter (pitch)	L	Part Number	ℓ1	ℓ
M3 (0.5)	6	WSB-306SPE	3.2	4.7
	7	WSB-307SPE	4.2	5.7
	8	WSB-308SPE	5.2	6.7
	10	WSB-310SPE	6	8.7
	12	WSB-312SPE	6	10.7
	15	WSB-315SPE	6	13.7
	18	WSB-318SPE	6	16.7
	20	WSB-320SPE	6	18.7
	twenty five	WSB-325SPE	6	23.7
	30	WSB-330SPE	6	28.7
	35	WSB-335SPE	6	33.7
	40	WSB-340SPE	6	38.7
	45	WSB-345SPE	6	43.7
	50	WSB-350SPE	6	48.7