Part Number	—	L
E-GCBSTSR3	—	10

■Product dimensions

M × P	Head				Hex Socket		Incomplete Threaded Portion (e)max.	Stem r max.
	Diameter A		Height E		Width B	Depth t
	Diameter A		Height E
	Dimension	Tolerance	Dimension	Tolerance
3 × 0.5	6	0 -0.5	0.8	±0.1	1.5	1 to 1.3	1.4	0.5
4 × 0.7	8		0.9		2	1.3 to 1.7	1.5	0.6
5 × 0.8	9		1		2.5	1.6 to 2	1.8	0.65
6 × 1.0	10		1.2		3	2.0 to 2.4	2.2	0.75

■ Mechanical Properties (Reference)

Thread Nominal M	Tightening Torque		Head Tensile Strength
	Tightening Torque
	N⋅m
	Recommended	Breakage	N/mm²
M3	0.4	0.6	350
M4	0.5	0.7
M5	1.8	2.3
M6	3.3	5

* The breaking torque is the torque at which the hex socket breaks when tightened. Tighten to the recommended torque.

■ Tolerance

L Dim.	M3	M4	M5	M6
4 to 10	0 -0.4	0 -0.6	0 -0.8
11 to 20	0 -0.6		0 -1
21 to 40	0 -0.8		0 -1

■Differences between MISUMI's Similar Products and Economy Series

		MISUMI Standard Products CBSTSR	Economy Series E-GCBSTSR
Sales Qty.		From 1 pc.
Screw Diameter		M2 to M6	M3 to M6
Material		SUS304 Equivalent	SUSXM7 (SUS304 Equivalent)
Head Height *		0.8 to 1.2
Head Tensile Strength *		350
Hex Socket Depth *		2 to 4	1 to 2.4
Tightening Torque N⋅m *	Recommended	0.6 to 5	0.4 to 3.3
	Breakage	-	0.6 to 5
RoHS10		Compliant

* Comparison between M3 and M6

Part Number
TYPE	M	—	L
E-GCBSTSR (SUSXM7)	3	—	5
			6
			8
			10
			12
			16
	4	—	5
			6
			8
			10
			12
			16
	5	—	8
			10
			12
			16
			20
	6	—	10
			12
			16
			20

Technical Information

This product has a slightly shallower hex socket depth than conventional products, and the tightening torque is slightly lower. Select them depending on the application.
Enlarged image with the head cut off so that the hex socket depth can be seen. *Reference

Part Number	Screw Diameter	Hex socket depth (mm)	Product Image
Part Number	Screw Diameter	Hex socket depth (mm)	Product Image
E-GCBSTSR3-10	M3	1 to 1.3
E-GCBSTSR4-10	M4	1.1 to 1.6
E-GCBSTSR5-10	M5	1.5 to 2
E-GCBSTSR6-12	M6	1.9 to 2.4

RoHS Compliant Ultra Low Head Cap Bolts - Hex Socket Type [RoHS Compliant]

Caution

Product Description

Dimensional Drawing