Manufacturer: Hirosugi Instruments Co., Ltd.
Model: WSB-400SPE

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
M4 (0.7)	8	WSB-408SPE	4	6.5
	10	WSB-410SPE	5.5	8.5
	12	WSB-412SPE	6.5	10.5
	15	WSB-415SPE	8	13.5
	18	WSB-418SPE	8	16.5
	20	WSB-420SPE	8	18.5
	twenty five	WSB-425SPE	8	23.5
	30	WSB-430SPE	8	28.5
	35	WSB-435SPE	8	33.5
	40	WSB-440SPE	8	38.5
	45	WSB-445SPE	8	43.5
	50	WSB-450SPE	8	48.5