Fasteners Manufacturer and Supplier in Mumbai

Stainless Steel Fasteners Manufacturer, Supplier, Exporter and Stockist in Mumbai, India.

Unifit Metalloys Inc. is a leading manufacturer and supplier of high-quality fasteners that follow both Indian and international standards. The range includes bolts, nuts, screws, washers, studs, and threaded rods, available in various sizes, grades, and materials like stainless steel, carbon steel, alloy steel, brass, copper, and nickel alloys.

Each fastener is designed for strength, long life, rust resistance, and accurate fitting. Stainless steel fasteners are ideal for chemical and marine use. Brass fasteners work well in electrical and decorative applications. Nickel alloy fasteners are preferred in high-pressure and high-temperature environments.

Trusted by industries such as construction, oil & gas, automotive, infrastructure, and engineering, Unifit Metalloys Inc. is committed to delivering reliable products with timely service across Mumbai and beyond.

SS Fasteners, ASTM A453 Grade 660 Stud Bolts, A286 Stainless Steel Bolts and Fasteners manufacturer in India in various Threads, Dimensions and Sizes

Stainless steel fasteners, including ASTM A453 Grade 660 Stud Bolts and A286 Stainless Steel Bolts, are widely used in high-temperature and high-stress environments due to their excellent strength and corrosion resistance. These fasteners are available in different thread types, dimensions, and sizes, making them suitable for a variety of industrial applications.

A453 Gr.660b Bolts, A453 Gr.660b Hex Nuts, ASTM A325 Type 1 Bolts, ASTM A325 Type 3 Bolts, ASTM A307 Gr.b Hex Bolts, ASTM A563 Grade Dh Hex Nuts, ASTM A193 Gr.5 Bolts

Get a best quote for Stainless Steel Bolts and Nuts, We Keep Bulk Stock of Fasteners at our stockyard, contact us to request a quote.

Fasteners Specifications

Dimensions	ASME B18.2.1, B18.3
Melt Origin	South America/East Europe/JapanKorea/
Product Origin	Made in India
Threads Configuration	ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
Certification	Dual Certified As per ASTM & ASME Codes
Additional Certifications	PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Mandatory Requirements	Free from Mercury & Radioactive Contamination
Additional Requirements	NACE MR0103 / MR0175 / ISO 15156 Compliance

Stainless Steel Fasteners Standards

Product	DIN	ISO	ASME		UNI
Product	DIN	ISO	Imperial	Metric	UNI
Studs	976	--	B18.31.2	B18.31.1M	6610
Hex Bolts	931	4014	B18.2.1	B18.2.3.5M	5737
Heavy Hex Bolts	6914	7412	B18.2.1	B18.2.3.7M	5712
Hex Cap Screws	933	4017	B18.2.1	B18.2.3.1M	5739
Socket Head Cap Screws	912	4762	B18.3	B18.3.1M	5931
Set Screws	916	4029	B18.3	B18.3.1M	5929
Countersunk Screws	7991	10642	B18.3	B18.3.1M	5933
Hex Nuts	934	4032	B18.2.2	B18.2.4.1M	5588
Heavy Hex Nuts	6915	4775	B18.2.2	B18.2.4.6M	5713

Dimensions Of Fasteners

D	D	s	s max	s min	e max	e min	m	m max	m min
1/4"	0.2500	1/2"	0.5000	0.4880	0.5770	0.5560	15/64"	0.2500	0.2180
5/16"	0.3125	9/16"	0.5620	0.5460	0.6500	0.6220	19/64"	0.3140	0.2800
3/8"	0.3750	11/16"	0.6880	0.6690	0.7940	0.7630	23/64"	0.3770	0.3410
7/16"	0.4375	3/4"	0.7500	0.7280	0.8660	0.8300	27/64"	0.4410	0.4030
1/2"	0.5000	7/8"	0.8750	0.8500	1.0100	0.9690	31/64"	0.5040	0.4640
9/16"	0.5625	15/16"	0.9380	0.9090	1.0830	1.0370	35/64"	0.5680	0.5260
5/8"	0.6250	1.1/16"	1.0620	1.0310	1.2270	1.1750	39/64"	0.6310	0.5870
3/4"	0.7500	1.1/4"	1.2500	1.2120	1.4430	1.3820	47/64"	0.7580	0.7100
7/8"	0.8750	1.7/16"	1.4380	1.3940	1.6600	1.5890	55/64"	0.8850	0.8330
1"	1.0000	1.5/8"	1.6250	1.5750	1.8760	1.7960	63/64"	1.0120	0.9560
1.1/8"	1.1250	1.13/16"	1.8120	1.7560	2.0930	2.0020	1.7/64"	1.1390	1.0790
1.1/4"	1.2500	2"	2.0000	1.9380	2.3090	2.2090	1.7/32"	1.2510	1.1870
1.3/8"	1.3750	2.3/16"	2.1880	2.1190	2.5260	2.4160	1.11/32"	1.3780	1.3100
1.1/2"	1.5000	2.3/8"	2.3750	2.3000	2.7420	2.6220	1.15/32"	1.5050	1.4330
1.5/8"	1.6250	2.9/16"	2.5620	2.4810	2.9590	2.8280	1.19/32"	1.6320	1.5560
1.3/4"	1.7500	2.3/4"	2.7500	2.6620	3.1750	3.0350	1.23/32"	1.7590	1.6790
1.7/8"	1.8750	2.15/16"	2.9380	2.8440	3.3920	3.2420	1.27/32"	1.8860	1.8020
2"	2.0000	3.1/8"	3.1250	3.0250	3.6080	3.4490	1.31/32"	2.0130	1.9250
2.1/4"	2.2500	3.1/2"	3.5000	3.3880	4.0410	3.8620	2.13/64"	2.2510	2.1550
2.1/2"	2.5000	3.7/8"	3.8750	3.7500	4.4740	4.2750	2.29/64"	2.5050	2.4010
2.3/4"	2.7500	4.1/4"	4.2500	4.1120	4.9070	4.6880	2.45/64"	2.7590	2.6470
3"	3.0000	4.5/8"	4.6250	4.4750	5.3400	5.1020	2.61/64"	3.0130	2.8930
3.1/4"	3.2500	5"	5.0000	4.8380	5.7740	5.5150	3.3/16"	3.2520	3.1240
3.1/5"	3.5000	5.3/8"	5.3750	5.2000	6.2070	5.9280	3.7/16"	3.5060	3.3700
3.3/4"	3.7500	5.3/4"	5.7500	5.5620	6.6400	6.3410	3.11/16"	3.7600	3.6160
4"	4.0000	6.1/8"	6.1250	5.9250	7.0730	6.7550	3.15/16"	4.0140	3.8620

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Ready Stock of Fasteners

ASTM A453 GR 660 Heavy Hex Bolts	Grade 660 Shoulder Bolt
ASTM A453 GR 660 Class A Anchor Bolt	ASTM A453 660 Stud Bolts
ASTM A453 Eye Bolt	ASTM A453 GR 660 Class B Stud Bolt
Grade 660 Step Bolt	Stainless Steel GR 660 Studs
ISO Approved ASTM A453 U Bolts	SS Grade 660 Plow Bolt
Class D Nuts	GR 660 Grub Screw
Stainless Steel GR 660 Threaded Rod	ASTM A453 J Bolt

Fasteners Application Industries

Refineries

90%

Oil and Gas Industry

96%

Power Generation

80%

Pharmaceutical Equipment

85%

Pulp & Paper Industry

88%