Hex Socket Cap Head SEMS Screw with Plain and Lock Washers, A286 Stainless Steel

SEMS screw: plain washer and split lock washer held captive under the head. M2 x 0.4 to M10 x 1.5, A286 stainless steel.

Section: SEMS screws
Part no.: SG-SEMS-SCPL-A286
Material: A286 stainless
Units: Metric

Overview

A cap head SEMS screw with a hex socket and a plain washer and split lock washer held captive under the head. The washer is fitted before the thread is rolled, so it cannot fall off: the screw and washer go in as one part, which saves time on the line and stops loose washers getting lost in equipment.

Made in A286 stainless steel (screw and washers), passivated or chemi-black. Head dimensions to BS EN ISO 4762 / DIN 912, lock washer BS 4464. Sizes M2 x 0.4 to M10 x 1.5.

Specifications

Brand	S&G
Part no. series	SG-SEMS-SCPL-A286
Head	Cap head, hex socket
Washers	Plain washer and split lock washer, held captive
Standards	BS EN ISO 4762 / DIN 912, lock washer BS 4464
Material	A286 stainless steel (screw and washers)
Finish	Passivated or chemi-black
Threads	M2 x 0.4, M2.5 x 0.45, M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5
Units	Metric (class 6g threads)

Sizes & part numbers

E is the washer stack in the compressed state. Longer lengths have a plain shank with a minimum full thread of 10 mm (M2), 12 mm (M2.5), 15 mm (M3, M4), 20 mm (M5), 25 mm (M6), 30 mm (M8) and 35 mm (M10). Values in mm. D is the plain washer outside diameter, max./min.

Part no.	Thread T	A head Ø (mm)	B head ht (mm)	C socket	D washer Ø (mm)	E (mm)	F (mm)	Standard L1 (mm)
SG-SEMS-SCPL-A286-M2	M2 x 0.4	3.8	2.0	1.5	5.0/4.7	0.8	1.7	6, 8, 10, 12, 16
SG-SEMS-SCPL-A286-M2.5	M2.5 x 0.45	4.5	2.5	2	6.5/6.2	1.1	2.1	6, 8, 10, 12, 16, 20
SG-SEMS-SCPL-A286-M3	M3 x 0.5	5.5	3.0	2.5	7.0/6.7	1.3	2.6	6, 8, 10, 12, 16, 20, 25, 30
SG-SEMS-SCPL-A286-M4	M4 x 0.7	7.0	4.0	3	9.0/8.7	1.7	3.3	8, 10, 12, 16, 20, 25, 30, 35, 40
SG-SEMS-SCPL-A286-M5	M5 x 0.8	8.5	5.0	4	10.0/9.7	2.2	4.2	10, 12, 16, 20, 25, 30, 35, 40, 45, 50
SG-SEMS-SCPL-A286-M6	M6 x 1.0	10.0	6.0	5	12.5/12.1	2.4	5.0	12, 16, 20, 25, 30, 35, 40, 45, 50
SG-SEMS-SCPL-A286-M8	M8 x 1.25	13.0	8.0	6	17.0/16.6	3.0	6.2	16, 20, 25, 30, 35, 40, 45, 50
SG-SEMS-SCPL-A286-M10	M10 x 1.5	16.0	10.0	8	21.0/20.5	3.5	8.1	20, 25, 30, 35, 40, 45, 50

How to order

Quote the part number with the underhead length L1, for example SG-SEMS-SCPL-A286-M2.5 × 12 mm, and the finish: passivated or black. Other lengths are made to order.