Captive Screw Sizes |Best Captive Screw Manufacturer Supplier Factory in China

Heatfastener

Captive Screw Supplier

We’re a leading manufacturer of specialty fastening solutions for demanding industrial applications. Our area of expertise is captive screws manufactured from high-quality, materials available in Titanium, Aluminum, Brass, and Copper, Besides these materials. Carton steel and stainless steel 304, stainless steel 316, etc materials are also available. We can also manufacture them per your specific request.

Heatfastener Specialty Manufacturing has been working with original equipment manufacturers for over 100 years, providing excellent and timely customer service. Our team of highly trained professionals utilizes only the latest technology and processing methods to manufacture all of our fasteners. We carefully monitor each washer to be sure it is made to precision. You’ll be satisfied with the end results. Our parts are widely used in aerospace, automotive, electronics, mechanical and electrical products, robots, the medical industry, the communications industry, outdoor sports products, smart appliances, etc

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What Are Captive Screws

Captive screws are a kind of specialist fasteners, also called captive panel screws, and feature a specialized reduced shank, underneath the head of the screw. Captive Fasteners offer a permanent fixing that cannot be simply lost or come loose and fall out, applications can benefit from a reduced risk of issues such as machinery downtime, general maintenance, and the need to frequently replace components.

Captive Screw Sizes

The captive screw sizes generally include the nominal capital screw dimensions, the outer diameter, the inner diameter, the length, the number of thread tails, Head diameter. These fasteners can be manufactured to customer drawings if you need captive screw sizes that are not standard, or as alternatives to standard bolts and screws based on existing manufacturing standards such as DIN or ISO, depending on the application requirements.

For Nominal Thread Diameter	4#	4#	6#	6#	6#	8#	8#	8#	10#	10#	10#	1/4	1/4	1/4
P		/	/	/	/	/	/	/	/	/	/	/	/	/
PP		40	40	40	32	32	32	32	32	32	32	32	32	20
c	max	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036
dc	max	0.218	0.218	0.218	0.249	0.249	0.249	0.311	0.311	0.311	0.311	0.311	0.311	0.374
dk	Nominal Size	0.417	0.417	0.417	0.45	0.45	0.45	0.514	0.514	0.514	0.514	0.514	0.514	0.575
	max	0.427	0.427	0.427	0.46	0.46	0.46	0.524	0.524	0.524	0.524	0.524	0.524	0.585
	min	0.407	0.407	0.407	0.44	0.44	0.44	0.504	0.504	0.504	0.504	0.504	0.504	0.565
H	Nominal Size	0.17	0.23	0.29	0.23	0.29	0.35	0.23	0.29	0.35	0.23	0.29	0.35	0.29
	max	0.195	0.255	0.315	0.255	0.315	0.375	0.255	0.315	0.375	0.255	0.315	0.375	0.315
	min	0.145	0.205	0.265	0.205	0.265	0.325	0.205	0.265	0.325	0.205	0.265	0.325	0.265
h	Nominal Size	0	0.06	0.12	0	0.06	0.12	0	0.06	0.12	0	0.06	0.12	0
	max	0.025	0.085	0.145	0.025	0.085	0.145	0.025	0.085	0.145	0.025	0.085	0.145	0.025
	min	-0.025	0.035	0.095	-0.025	0.035	0.095	-0.025	0.035	0.095	-0.025	0.035	0.095	-0.025
L1	Nominal Size	0.31	0.31	0.31	0.45	0.45	0.45	0.45	0.45	0.45	0.45	0.45	0.45	0.53
L2	Nominal Size	0.45	0.45	0.45	0.64	0.64	0.64	0.64	0.64	0.64	0.64	0.64	0.64	0.79
Sheet Thickness	min	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036	0.036
Recommend Hole Size	min=nominal size	0.219	0.219	0.219	0.25	0.25	0.25	0.312	0.312	0.312	0.312	0.312	0.312	0.375
	max	0.222	0.222	0.222	0.253	0.253	0.253	0.315	0.315	0.315	0.315	0.315	0.315

captive screw sizes

For Nominal Thread Diameter		M3	M3	M3	M3.5	M3.5	M3.5	M4	M4	M5	M5	M6	M6	M6	M6
P		0.5	0.5	0.5	0.6	0.6	0.6	0.7	0.7	0.8	0.8	0.8	1	1	1
PP		/	/	/	/	/	/	/	/	/	/	/	/	/	/
c	max	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92
dc	max	5.54	5.54	5.54	6.33	6.33	6.33	7.9	7.9	7.9	7.9	7.9	9.5	9.5	9.5
dk	Nominal Size	10.59	10.59	10.59	11.43	11.43	11.43	13.06	13.06	13.06	13.06	13.06	14.61	14.61	14.61
	max	10.84	10.84	10.84	11.68	11.68	11.68	13.31	13.31	13.31	13.31	13.31	14.86	14.86	14.86
	min	10.34	10.34	10.34	11.18	11.18	11.18	12.81	12.81	12.81	12.81	12.81	14.36	14.36	14.36
H	Nominal Size	4.32	5.84	7.37	5.84	7.37	8.89	5.84	8.89	5.84	7.37	8.89	7.37	8.89	10.41
	max	4.96	6.48	8.01	6.48	8.01	9.53	6.48	9.53	6.48	8.01	9.53	8.01	9.53	11.05
	min	3.68	5.2	6.73	5.2	6.73	8.25	5.2	8.25	5.2	6.73	8.25	6.73	8.25	9.77
h	Nominal Size	0	1.52	3.05	0	1.52	3.05	0	3.05	0	1.52	3.05	0	1.52	3.05
	max	0.64	2.16	3.69	0.64	2.16	3.69	0.64	3.69	0.64	2.16	3.69	0.64	2.16	3.69
	min	-0.64	0.88	2.41	-0.64	0.88	2.41	-0.64	2.41	-0.64	0.88	2.41	-0.64	0.88	2.41
L1	Nominal Size	7.87	7.87	7.87	11.43	11.43	11.43	11.43	11.43	11.43	11.43	11.43	13.46	13.46	13.46
L2	Nominal Size	11.43	11.43	11.43	16.26	16.26	16.26	16.26	16.26	16.26	16.26	16.26	20.07	20.07	20.07
Sheet Thickness	min	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92	0.92
Recommend Hole Size	min=nominal size	5.56	5.56	5.56	6.35	6.35	6.35	7.92	7.92	7.92	7.92	7.92	9.53	9.53	9.53
	max	5.64	5.64	5.64	6.43	6.43	6.43	8	8	8	8	8	9.61	9.61	9.61

captive screw sizes

Captive screws can be made of many materials like standard A2 stainless steel captive screws, Heatfastener can also manufacture these fasteners in specialist materials, including lightweight Aluminium, Titanium, and ultra-lightweight PEEK Thermoplastic. carbon steel according to customer application to customize

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