PTFE Coated Fasteners

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Are you trying to find some fasteners? A coating that can prevent sticking while yet being long-lasting and having outstanding properties? The most effective option that is available to you is to use bolts and nuts that have been coated in PTFE. These coated fasteners, also known as polytetrafluoroethylene, have a fluoropolymer coating that is made from a synthetic substance. They feature a low coefficient of friction, along with a high working temperature, strong abrasion resistance, and chemical resistance.

Teflon-coated fasteners are frequently used when the coating needs to be smooth, moderate, and resist corrosion. An excellent illustration of this may be seen in the food sector or the home appliances industries, both of which need Teflon-coated B7 stud bolts to be used on their non-stick goods. The PTFE coating on these bolts allows them to resist temperatures up to 500 degrees Fahrenheit and is applied in the aspects of the company. Compared to fluoropolymer, PTFE Coated Stud Bolts are more resistant to heat, and the coating on them is roughly one mil thick.

About PTFE Coated Fasteners

Because of the hydrophobic qualities inherent in PTFE Coated Fasteners, there is a high demand for these fasteners in the food industry and the medical and surgical device sectors. They are resistant to germs thanks to their hydrophobic characteristics.

Powder-coated fasteners are a different kind of coated fastener than the other types. They are electrostatically sprayed onto the bolts and suits using a technique that permanently attaches them to the fasteners once they have been sprayed on. Zinc-coated fasteners are another form of coated fasteners that are available. They can withstand temperatures up to 204 degrees Celsius (400 degrees Fahrenheit) and impart lubricity to the fasteners. On the other hand, Xylan-coated fasteners are favored by coated nut producers worldwide because they can resist temperatures of up to 550 degrees Fahrenheit.

Specification of PTFE Coated Fasteners

Specifications	IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards
Threads	BSF, UNF METRIC, UNC, BSW or as required
Standard	M02 to M33ANSI – American National Standards Institute SS Stud Bolt length are defined in ASME B16.5 standard ANSI B 28.2.4 1M ANSI B 18.2.4 2M ASME B18.5 SS Hex nuts are defined in ASME B18.2.2 DIN: DIN 933, DIN 931, DIN 970, DIN 934 UTS – Unified Thread Standard : UNF, NPT, NPTF, UNS, UNC, UNEF ISO – International Organization for Standardization ISO 4033, : ISO 4032, JIS standards
Fasteners/ Bolts Size	M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160
Length	3 mm to 200 mm
Head drive	Phillips, Slotted, Phillips/Slot, Six-Lobe etc
Test Certificate	as per EN 10204 / 3.1 Manufacturer Test Certificate
Finishing	Zinc white, (yellow, black, blue), black oxide, Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating
raw materials of Source	JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc.
Surface Coating	PTFE Coated Fasteners
Packing	IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request

Dimensions Of PTFE Coated Fasteners

PTFE Coated Bolts Dimensions Chart :

Nominal Size or Basic Product Diameter		Full-Size Body Diameter, E		Width Across Flats, F			Width Across Corners, G		Head Height, H Basic			Radius of Fillet, R		Nominal Thread Length for Bolt Lengths, LT
inch	mm	Max	Min	Basic inch	Max	Min	Max	Min	Basic inch	Max	Min	Max	Min	6 in. and Shoter	Over 6 in.
1⁄4	0.25	0.26	0.237	7⁄16	0.438	0.425	0.505	0.484	11⁄64	0.188	0.15	0.03	0.01	0.75	1
5⁄16	0.3125	0.324	0.298	1⁄2	0.5	0.484	0.577	0.552	7⁄32	0.235	0.195	0.03	0.01	0.875	1.125
3⁄8	0.375	0.388	0.36	9⁄16	0.562	0.544	0.65	0.62	1⁄4	0.268	0.226	0.03	0.01	1	1.25
7⁄16	0.4375	0.452	0.421	5⁄8	0.625	0.603	0.722	0.687	19⁄64	0.316	0.272	0.03	0.01	1.125	1.375
1⁄2	0.5	0.515	0.482	3⁄4	0.75	0.725	0.866	0.826	11⁄32	0.364	0.302	0.03	0.01	1.25	1.5
5⁄8	0.625	0.642	0.605	15⁄16	0.938	0.906	1.083	1.033	27⁄64	0.444	0.378	0.06	0.02	1.5	1.75
3⁄4	0.75	0.768	0.729	11⁄8	1.125	1.088	1.299	1.24	1⁄2	0.524	0.455	0.06	0.02	1.75	2
7⁄8	0.875	0.895	0.852	1 5⁄16	1.312	1.269	1.516	1.447	37⁄64	0.604	0.531	0.06	0.02	2	2.25
1	1	1.022	0.976	1 1⁄2	1.5	1.45	1.732	1.653	43⁄64	0.7	0.591	0.09	0.03	2.25	2.5
1 1⁄8	1.125	1.149	1.098	1 11⁄16	1.688	1.631	1.949	1.859	3⁄4	0.78	0.658	0.09	0.03	2.5	2.75
1 1⁄4	1.25	1.277	1.223	1 7⁄8	1.875	1.812	2.165	2.066	27⁄32	0.876	0.749	0.09	0.03	2.75	3
1 3⁄8	1.375	1.404	1.345	2 1⁄16	2.062	1.994	2.382	2.273	29⁄32	0.94	0.81	0.09	0.03	3	3.25
1 1⁄2	1.5	1.531	1.47	2 1⁄4	2.25	2.175	2.598	2.48	1	1.036	0.902	0.09	0.03	3.25	3.5
1 5⁄8	1.625	1.658	1.591	2 7⁄16	2.438	2.356	2.815	2.616	1 3⁄32	1.116	0.978	0.09	0.03	3.5	3.75
1 3⁄4	1.75	1.785	1.716	2 5⁄8	2.625	2.538	3.031	2.893	1 5⁄32	1.196	1.054	0.12	0.04	3.75	4
1 7⁄8	1.875	1.912	1.839	2 13⁄16	2.812	2.719	3.248	3.099	1 1⁄4	1.276	1.13	0.12	0.04	4	4.25
2	2	2.039	1.964	3	3	2.9	3.464	3.306	1 11⁄32	1.388	1.175	0.12	0.04	4.25	4.5
2 1⁄4	2.25	2.305	2.214	3 3⁄8	3.375	3.262	3.897	3.719	1 1⁄2	1.548	1.327	0.19	0.06	4.75	5
2 1⁄2	2.5	2.559	2.461	3 3⁄4	3.75	3.625	4.33	4.133	1 21⁄32	1.708	1.479	0.19	0.06	5.25	5.5
2 3⁄4	2.75	2.827	2.711	4 1⁄8	4.125	3.988	4.763	4.546	1 13⁄16	1.869	1.632	0.19	0.06	5.75	6
3	3	3.081	2.961	4 1⁄2	4.5	4.35	5.196	4.959	2	2.06	1.815	0.19	0.06	6.25	6.5
3 1⁄4	3.25	3.335	3.21	4 7⁄8	4.875	4.712	5.629	5.372	2 3⁄16	2.251	1.936	0.19	0.06	6.75	7
3 1⁄2	3.5	3.589	3.461	5 1⁄4	5.25	5.075	6.062	5.786	2 5⁄16	2.38	2.057	0.19	0.06	7.25	7.5
3 3⁄4	3.75	3.858	3.726	5 5⁄8	5.625	5.437	6.495	6.198	2 1⁄2	2.572	2.241	0.19	0.06	7.75	8
4	4	4.111	3.975	6	6	5.8	6.928	6.612	2 11⁄16	2.764	2.424	0.19	0.06	8.25	8.5

PTFE Coated Stud Bolts Dimensions Chart :

Nominal Size Diameter, D inch	Tap End Full Thread Length, BM			Umax = 2P			Minimum Nut End Full Thread Length, Bmin
Nominal Size Diameter, D inch	Nominal	Min.	Max.	UNC & NC-5 Thread	UNF Thread	8UN Thread	L ≤ 10	10	L > 16
1/4	0.375	0.350	0.400	0.100	0.071	...	0.750	1.000	1.500
5/16	0.469	0.440	0.498	0.111	0.083	--	0.875	1.125	1.625
3/8	0.563	0.532	0.594	0.125	0.083	--	1.000	1.250	1.750
7/16	0.656	0.620	0.692	0.143	0.100	--	1.125	1.375	1.875
1/2	0.750	0.708	0.792	0.154	0.100	--	1.250	1.500	2.000
9/16	0.844	0.802	0.896	0.167	0.111	--	1.375	1.625	2.125
5/8	0.938	0.892	0.983	0.182	0.111	--	1.500	1.750	2.250
3/4	1.1.25	1.075	1.175	0.200	0.125	--	1.750	2.000	2.500
7/8	1.313	1.258	1.368	0.222	0.143	--	2.000	2.250	2.750
1	1.500	1.438	1.562	0.250	0.167	--	2.250	2.500	3.000
1 1/8	1.688	1.625	1.750	0.286	0.167	0.250	2.500	2.750	3.250
1 1/4	1.875	1.813	1.938	0.286	0.167	0.250	2.750	3.000	3.500
1 3/8	2.063	2.000	2.125	0.333	0.167	0.250	3.000	3.250	3.750
1 1/2	2.250	2.188	2.313	0.333	0.167	0.250	3.250	3.500	4.000
1 5/8	2.438	2.375	2.500	--	--	0.250	3.500	3.750	4.250
1 3/4	2.625	2.563	2.688	0.400	--	0.250	3.750	4.000	4.500
1 7/8	2.813	2.750	2.875	--	--	0.250	4.000	4.250	4.750
2	3.000	2.925	3.075	0.444	--	0.250	4.250	4.500	5.000
2 1/4	3.375	3.300	3.450	0.444	--	0.250	4.750	5.000	5.500
2 1/2	3.750	3.675	3.825	0.500	--	0.250	5.250	5.500	6.000
2 3/4	4.125	4.050	4.200	0.500	--	0.250	5.750	6.000	6.500
3	4.500	4.425	4.575	0.500	--	0.250	--	6.500	7.000
3 1/4	4.875	4.775	4.975	0.500	--	0.250	--	7.000	7.500
3 1/2	5.250	5.150	5.350	0.500	--	0.250	--	7.500	8.000
3 3/4	5.625	5.525	5.725	0.500	--	0.250	--	8.000	8.500
4	6.000	5.900	6.100	0.500	--	0.250	--	8.500	9.000

PTFE Coated Nuts Dimensions :

Nominal Size inch	Basic Major Diameter of Thread	Width Across Flats, F			Width Across Corners, G		Thickness Heavy Hex Nuts, H			Thickness Heavy Hex Jam Nuts, H1			Maximum Runout of Bearing Surface to Thread Axis, FIM
													Heavy HEX NUTS		Heavy Hex Jam Nuts
													Specified Proof load		Heavy Hex Jam Nuts
		Basic inch	Min.	Max	Min.	Max	Basic inch	Min.	Max	Basic inch	Min.	Max	Up to 150,000 psi	150,000 psi and Greater	All Strength Levels
1/4	0.2500	1/2	0.488	0.500	0.556	0.577	15/64	0.218	0.250	11/64	0.156	0.188	0.017	0.011	0.017
5/16	0.3125	9/16	0.546	0.562	0.622	0.650	19/64	0.280	0.314	13/64	0.186	0.220	0.020	0.012	0.020
3/8	0.3750	11/16	0.669	0.688	0.763	0.794	23/64	0.341	0.377	15/64	0.216	0.252	0.021	0.014	0.021
7/16	0.4375	3/4	0.728	0.750	0.830	0.866	27/64	0.403	0.441	17/64	0.247	0.285	0.022	0.015	0.022
1/2	0.5000	7/8	0.850	0.875	0.969	1.010	31/64	0.464	0.504	19/64	0.277	0.317	0.023	0.016	0.023
9/16	0.5625	15/16	0.909	0.938	1.037	1.083	35/64	0.526	0.568	21/64	0.307	0.349	0.024	0.017	0.024
5/8	0.6250	1 1/16	1.031	1.062	1.175	1.227	39/64	0.587	0.631	23/64	0.337	0.381	0.025	0.018	0.025
3/4	0.7500	1 1/4	1.212	1.250	1.382	1.443	47/64	0.710	0.758	27/64	0.398	0.446	0.027	0.020	0.027
7/8	0.8750	1 7/16	1.394	1.438	1.589	1.660	55/64	0.833	0.885	31/64	0.458	0.510	0.029	0.022	0.029
1	1.0000	1 5/8	1.575	1.625	1.796	1.876	63/64	0.956	1.012	35/64	0.519	0.575	0.031	0.024	0.031
1 1/8	1.1250	1 13/16	1.756	1.812	2.002	2.093	1 7/64	1.079	1.139	39/64	0.579	0.639	0.033	0.027	0.033
1 1/4	1.2500	2	1.938	2.000	2.209	2.309	1 7/32	1.187	1.251	23/32	0.687	0.751	0.035	0.030	0.035
1 3/8	1.3750	2 3/16	2.119	2.188	2.416	2.526	1 11/32	1.310	1.378	25/32	0.747	0.815	0.038	0.033	0.038
1 1/2	1.5000	2 3/8	2.300	2.375	2.622	2.742	1 15/32	1.433	1.505	27/32	0.808	0.880	0.041	0.036	0.041
1 5/8	1.6250	2 9/16	2.481	2.562	2.828	2.959	1 19/32	1.556	1.632	29/32	0.868	0.944	0.044	0.038	0.044
1 3/4	1.7500	2 3/4	2.662	2.750	3.035	3.175	1 23/32	1.679	1.759	31/32	0.929	1.009	0.048	0.041	0.048
1 7/8	1.8750	2 15/16	2.844	2.938	3.242	3.392	1 27/32	1.802	1.886	1 1/32	0.989	1.073	0.051	0.044	0.051
2	2.0000	3 1/8	3.025	3.125	3.449	3.608	1 31/32	1.925	2.013	1 3/32	1.050	1.138	0.055	0.047	0.055
2 1/4	2.2500	3 1/2	3.388	3.500	3.862	4.041	2 13/64	2.155	2.251	1 13/64	1.155	1.251	0.061	0.052	0.061
2 1/2	2.5000	3 7/8	3.750	3.875	4.275	4.474	2 29/64	2.401	2.505	1 29/64	1.401	1.505	0.068	0.058	0.068
2 3/4	2.7500	4 1/4	4.112	4.250	4.688	4.907	2 45/64	2.647	2.759	1 37/64	1.522	1.634	0.074	0.064	0.074
3	3.0000	4 5/8	4.475	4.625	5.102	5.340	2 61/64	2.893	3.013	1 45/64	1.643	1.763	0.081	0.070	0.081
3 1/4	3.2500	5	4.838	5.000	5.515	5.774	3 3/16	3.124	3.252	1 13/16	1.748	1.876	0.087	0.075	0.087
3 1/2	3.5000	5 3/8	5.200	5.375	5.928	6.207	3 7/16	3.370	3.506	1 15/16	1.870	2.006	0.094	0.081	0.094
3 3/4	3.7500	5 3/4	5.562	5.750	6.341	6.640	3 11/16	3.616	3.760	2 1/16	1.990	2.134	0.100	0.087	0.100
4	4.0000	6 1/8	5.925	6.125	6.755	7.073	3 15/16	3.862	4.014	2 3/16	2.112	2.264	0.107	0.093	0.107

PTFE Coated Washer Dimensions Chart :

Nominal Size								T					Clipped Width E, Min.
	I.D.			O.D.			Standard			Extra Thick
[Note (1)]		Max.	Min.		Max.	Min.		Max.	Min.		Max.	Min.	[Note (2)]
12		14.4	14		27	25.7		4.6	3.1		10	8	10.5
16		18.4	18		34	32.4		4.6	3.1		10	8	14
20		22.5	22		42	40.4		4.6	3.1		10	8	17.5
22		24.5	24		44	42.4		4.6	3.4		10	8	19.2
24		26.5	26		50	48.4		4.6	3.4		10	8	21
27		30.5	30		56	S4.1		4.6	3.4		10	8	23.6
30		33.6	33		60	58.1		4.6	3.4		10	8	26.2
36		39.6	39		72	70.1		4.6	3.4		10	8	31.S
42		45.6	45		84	81.8		7.2	4.6		10	8	36.7
48		52.7	52		95	92.8		7.2	4.6		10	8	42
56		62.7	62		107	104.8		8.7	6.1		10	8	49
64		70.7	70		118	115.8		8.7	6.1		10	8	56
72		78.7	78		130	127.5		8.7	6.1		10	8	63
80		86.9	86		142	139.5		8.7	6.1		10	8	70
90		96.9	96		159	156.5		8.7	6.1		10	8	78.7
100		107.9	107		176	173.5		8.7	6.1		10	8	87.5

Torque Chart PTFE Coated Fasteners

Diameter (D)	Body Diameter (D)		Across the Flats (F)		Across the Corners ©		Head Height (H)		Thread Lengths (T)
	MAX	MIN	MAX	MIN	MAX	MIN	MAX	MIN	<6”	>6”
1/2	0.515	0.482	0.875	0.85	1.01	0.969	0.364	0.302	1.25	1.5
5/8	0.642	0.605	1.062	1.031	1.227	1.175	0.444	0.378	1.5	1.75
3/4	0.768	0.729	1.25	1.212	1.443	1.383	0.524	0.455	1.75	2
7/8	0.895	0.852	1.438	1.394	1.66	1.589	0.604	0.531	2	2.25
1	1.022	0.976	1.625	1.575	1.876	1.796	0.7	0.591	2.25	2.5
1 1/8	1.149	1.098	1.812	1.756	2.093	2.002	0.78	0.658	2.5	2.75
1 1/4	1.277	1.223	2	1.938	2.309	2.209	0.876	0.749	2.75	3
1 3/8	1.404	1.345	2.188	2.119	2.526	2.416	0.94	0.81	3	3.25
1 1/2	1.531	1.47	2.375	2.3	2.742	2.622	1.036	0.902	3.25	3.5
1 3/4	1.785	1.716	2.75	2.662	3.175	3.035	1.196	1.054	3.75	4
2	2.039	1.964	3.125	3.025	3.608	3.449	1.388	1.175	4.25	4.5
2 1/4	2.305	2.214	3.5	3.388	4.041	3.862	1.548	1.327	4.75	5
2 1/2	2.559	2.461	3.875	3.75	4.474	4.275	1.708	1.479	5.25	5.5
2 3/4	2.827	2.711	4.25	4.112	4.907	4.688	1.869	1.632	5.75	6
3	3.081	2.961	4.625	4.475	5.34	5.102	2.06	1.815	6.25	6.5

Different Types Of PTFE Coated Fasteners

Application of PTFE Coated Fasteners

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Engineering

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Petrochemical Industry

Ship Building

Testing of PTFE Coated Fasteners

Chemical Analysis

Deimension

Fasteners-testings

Flaring Test

Hardness Test

nondestructive-testing

Packing of PTFE Coated Fasteners

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