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Fastener Industry News and Trends in 2025

2025 Yiwu International Import and Export Exhibition–October 21-24

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GB37 T-head bolt Half thread

The T-bolt can be directly placed into the aluminum profile groove, and it can automatically position and lock during installation. It is often used in conjunction with flange nuts and is a standard matching connector for installing corner pieces. It can be selected and used according to the width of the profile groove and different series of profiles.

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Description

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Product Name	GB37 T-head bolt Half thread
Material	Carbon steel
Surface Finish	White zinc, Blackened, Natural color
Colour	Black, White
Standard Number	GB37
Grade	4.8 6.8 8.8
Diameter	M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M36
Length	20 25 30 35 40 45 50 55 60 70 120 130 140 150
Thread form	Coarse thread
Thread	Half thread
Place of origin	Hebei, China
Brand	Muyi
Pack	Box+cardboard carton+pallet
The product can be customized
The T-bolt can be directly placed into the aluminum profile groove, and it can automatically position and lock during installation. It is often used in conjunction with flange nuts and is a standard matching connector for installing corner pieces. It can be selected and used according to the width of the profile groove and different series of profiles.

Thread Spec d		M8	M10	M12	M16	M20	M24	M30	M36
P	flight lead	1.25	1.5	1.75	2	2.5	3	3.5	4
b	L≤125	22	26	30	38	46	54	66	78
	125＜L≤200	28	32	36	44	52	60	72	84
	L＞200	/	/	/	57	65	73	85	97
ds	max	8	10	12	16	20	24	30	36
ds	min	7.64	9.64	11.57	15.57	19.48	23.48	29.48	35.38
D		20	25	30	38	46	58	75	85
k	max	6.24	7.29	8.89	11.95	14.35	16.35	20.42	24.42
k	min	5.76	6.71	8.31	11.25	13.65	15.65	19.58	23.58
h		4.1	4.8	6.5	9	10.4	11.8	14.5	18.5
s	max	14	18	22	28	34	44	56	67
s	min	13.57	17.57	21.16	27.16	33	43	54.8	65.1
x	max	3.2	3.8	4.2	5	6.3	7.5	8.8	10

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