Stainless Steel Nuts

Stainless Steel Nuts Manufacturer in India

Unifit Fastener is a reputed and trusted stainless steel nuts manufacturer in India, known for delivering precision-engineered fastening solutions for a wide range of industrial applications. Our product line of SS Nuts is wide-ranged, and all the nuts have been produced with high-quality raw material and modern production technology that can last long and be depended upon. We supply the immediate demand of supplies effectively in India and abroad markets with the help of a well-maintained ready-stock inventory.

Our nuts are available in various grades, such as 304/304H/304L,316/316L, 310/310s, 317/317L, 347/347H, and 321 specialty alloys. The nuts have been engineered to resist corrosion, high pressure, and tough operating conditions and thus can be used in power plants, renewable energy systems, chemical processing, marine environments, and major infrastructure projects.

Unifit Fastener, as one of the largest manufacturers of fasteners, is oriented on constant quality, timely delivery, and individual solutions. We also provide the full line of stainless steel bolts, washers, screws, and other fasteners that may be used to meet various engineering needs.

Unifit Fastener is a vendor offering high-quality stainless steel nuts at a reasonable cost. Call Unifit Fastener today.

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Table of Content

What are Stainless Steel Nuts?
Grades of Stainless Steel Nuts
Specifications of Stainless Steel Nuts
Dimensions schedule of UNC Heavy hex nut
Dimensions chart of SS Nuts
Applications of Stainless Steel Nuts

What are Stainless Steel Nuts?

Stainless steel nuts are threaded fasteners that were produced out of stainless steel, an alloy that has the ability to resist corrosion and has high strength and durability. They are employed to fix the components together with a corresponding bolt or screw and are suitable for working in a hostile and corrosive environment, such as in the marine environment, as well as in industrial applications where high strength is needed and hygiene is important. These nuts come in many shapes, sizes, and grades, including 304 and 316, which provide varying degrees of corrosion resistance.

Grades of Stainless Steel Nuts

Specifications of Stainless Steel Nuts

Material Grades : Stainless Steel 304, 304L, 316, 316L, 310, 321, 347, 410; A2, A4, A2-70, A4-70, A4-80
Standard : DIN 934, DIN 936, DIN 985, ISO 4035, ASME B18.6.3, BS 57
Sizes : M2–M24 (Cold Forged), M24–M100 (Hot Forged), Custom sizes up to M160
Length Range : 3mm – 200mm
Thread Types : Metric, Metric Fine, UNC, UNF, BSW, BA, BSF
Head Types : Hex, Pan, Round, Oval, Countersunk, Truss
Surface & Finish : Stainless Steel Passivated, Zinc Plated, Black Oxide, Hot Dip Galvanized, DACROMET, PTFE
Production : Cold Heading, CNC Machining, Heat Treatment, Tapping, Inspection
Packing : Bulk, Carton, Pallet, Custom Packing
MOQ : 5 Pieces
Applications : Power, Renewable Energy, Wind Towers, Construction, Automotive, Industrial Projects
Testing & Certification : EN 10204 / 3.1, ISO 898-1, ISO 898-2, Calibrated Gauges

Dimensions schedule of UNC Heavy hex nut

Nut Size (in)	Max Across Corners	Min Across Corners	Max Thickness	Min Thickness	Max Across Flats	Min Across Flats
3/8	20.2	19.4	9.6	8.7	17.5	17
7/16	22	21.1	11.2	10.2	19	18.5
1/2	25.6	24.6	12.8	11.8	22.2	21.6
9/16	27.5	26.3	14.4	13.4	23.8	23.1
5/8	31.2	29.8	16	14.9	27	26.2
3/4	36.7	35.1	19.3	18	31.8	30.8
7/8	42.2	40.4	22.5	21.2	36.5	35.4
1	47.7	45.6	25.7	24.3	41.3	40
1 1/8	53.2	50.8	28.9	27.4	46	44.6
1 1/4	58.6	56.1	31.8	30.1	50.8	49.2
1 3/8	64.2	61.4	35	33.3	55.6	53.8
1 1/2	69.6	66.6	38.2	36.4	60.3	58.4
1 5/8	75.2	71.8	41.5	39.5	65.1	63
1 3/4	80.6	77.1	44.7	42.6	69.9	67.6
1 7/8	86.2	82.3	47.9	45.8	74.6	72.2
2	91.6	87.6	51.1	48.9	79.4	76.8
2 1/4	102.6	98.1	57.2	54.7	88.9	86.1
2 1/2	113.6	108.6	63.6	61	98.4	95.2
2 3/4	124.6	119.1	70.1	67.2	108	104.4
3	135.6	129.6	76.5	73.5	117.5	113.7

Dimensions chart of SS Nuts

Nut Size (M)	Across Corners	Max Thickness	Min Thickness	Max Across Flats	Min Across Flats
M8	14.38	6.8	6.44	13	12.73
M10	17.77	8.4	8.04	16	15.73
M12	20.03	10.8	10.37	18	17.73
M14	23.35	12.8	12.1	21	20.67
M16	26.75	14.8	14.1	24	23.67
M18	29.56	15.8	15.1	27	26.16
M20	32.95	18	16.9	30	29.16
M22	37.29	19.4	18.1	34	33
M24	39.55	21.5	20.2	36	35
M27	45.2	23.8	22.5	41	40
M30	50.85	26.6	24.3	46	45
M33	55.37	28.7	27.4	50	49
M36	60.79	31	29.4	55	53.8
M39	66.44	33.4	31.8	60	58.8
M42	71.3	34	32.4	65	63.1
M45	76.95	36	34.4	70	68.1
M48	82.6	38	39.4	75	73.1
M52	88.25	42	40.4	80	78.1
M56	93.56	45	43.4	85	82.8
M60	99.21	48	46.4	90	87.8
M64	104.86	51	49.1	95	92.8
M68	110.51	54	52.1	100	97.8
M72 × 6	116.16	58	56.1	105	102.8
M76 × 6	121.81	61	59.1	110	107.8
M80 × 6	127.46	64	62.1	115	112.8

Applications of Stainless Steel Nuts

Used in power plants and renewable energy systems.
Essential for wind towers and nuclear installations.
Commonly applied in construction and civil engineering projects.
Widely used in the automotive and heavy machinery industries.
Ideal for marine and chemical environments due to corrosion resistance.
Suitable for electrical equipment and pipelines.
Used in industrial machinery and infrastructure projects for secure fastening.
Perfect for applications requiring high strength and durability under extreme conditions

Heat-Treatment Furnaces: Reliable for fixtures and components operating in extreme temperatures.

FAQs About SS Nuts

1. Are stainless steel nuts strong?

Yes, stainless steel nuts are highly durable and strong. They provide excellent tensile strength and are designed to withstand heavy loads and high-pressure applications.

2. Will stainless steel nuts rust?

A: Stainless steel nuts are resistant to rust and corrosion due to their chromium content, making them ideal for outdoor, marine, and industrial environments. However, in extremely harsh conditions, some grades may still require protective coatings.

3. What grade is a stainless steel nut?

Stainless steel nuts are available in various grades such as 304, 304L, 316, 316L, 310, 321, 347, and 410. Each grade offers different levels of corrosion resistance, strength, and suitability for specific applications.

4. What grades of stainless steel nuts are available?

Common grades include 304, 304L, 316, 316L, 310, 321, 347, and 410, offering corrosion resistance and strength for various applications.