Stainless steel stud bolts with heavy hex nuts and washers

Stainless Steel · Ferrous

Fasteners & Nut Bolts

Name: Stainless Steel Fasteners & Nut Bolts
Brand: Ritvik Metal Impex
SKU: RMI-007

Bolts, nuts, washers, anchors, fasteners, stud bolts, eye bolts, threaded rods and cotter pins in Stainless Steel (AISI 302/304/316/321/347), Titanium Grade 2 (UNS R50400, ASTM F467/F468), Alloy Steel (4.6 to 12.9 grades) and Carbon Steel (galvanized, phosphated, cadmium plated finishes).

Material

Stainless Steel

Form

Fasteners

Fasteners & Nut Bolts Specifications

Chemical Composition for Fasteners & Nut Bolts supplied by Ritvik Metal Impex
Grade	C	Mn	P	S	Si	Cr	Ni	Mo	Other
TP 304	0.08	2.00	0.045	0.030	1.00	18.0–20.0	8.0–11.0	—	N 0.10
TP 304L	0.035	2.00	0.045	0.030	1.00	18.0–20.0	8.0–13.0	—	N 0.10
TP 316	0.08	2.00	0.045	0.030	1.00	16.0–18.0	11.0–14.0	2.00–3.00	N 0.10
TP 316L	0.035	2.00	0.045	0.030	1.00	16.0–18.0	10.0–15.0	2.00–3.00	N 0.10
TP 321	0.08	2.00	0.045	0.030	1.00	17.0–19.0	9.0–12.0	—	Ti ≥ 5 × C
TP 347	0.08	2.00	0.045	0.030	1.00	17.0–19.0	9.0–13.0	—	Nb ≥ 10 × C
TP 310S	0.08	2.00	0.045	0.030	1.00	24.0–26.0	19.0–22.0	—	—
TP 317L	0.035	2.00	0.045	0.030	1.00	18.0–20.0	11.0–15.0	3.00–4.00	N 0.10

Note: Per ASTM A312 / A240. Values are maximum % by weight unless a range is shown. ASTM A312 permits 0.035% max carbon on L grades, where ASTM A240 plate specifies 0.030% max.

Mechanical Properties for Fasteners & Nut Bolts supplied by Ritvik Metal Impex
Grade	Tensile Strength (min)	Yield Strength 0.2% (min)	Elongation (min)	Hardness (max)
TP 304	515 MPa (75 ksi)	205 MPa (30 ksi)	35%	90 HRB / 192 HBW
TP 304L	485 MPa (70 ksi)	170 MPa (25 ksi)	35%	90 HRB / 192 HBW
TP 316	515 MPa (75 ksi)	205 MPa (30 ksi)	35%	90 HRB / 192 HBW
TP 316L	485 MPa (70 ksi)	170 MPa (25 ksi)	35%	90 HRB / 192 HBW
TP 321	515 MPa (75 ksi)	205 MPa (30 ksi)	35%	90 HRB / 192 HBW
TP 347	515 MPa (75 ksi)	205 MPa (30 ksi)	35%	90 HRB / 192 HBW
TP 310S	515 MPa (75 ksi)	205 MPa (30 ksi)	35%	90 HRB / 192 HBW

Note: Specified minimum values in the solution-annealed condition, per ASTM A312 / A240. Elongation is measured in 50 mm (2 in.).

Size Range & Supply Condition for Fasteners & Nut Bolts supplied by Ritvik Metal Impex
Parameter	Range
Diameter	M3 to M100 / #4 to 4"
Length	3 mm to 500 mm
Thread standards	Metric coarse & fine, UNC, UNF, BSW, BSF, NPT, BSP
Property class — carbon & alloy	4.6, 4.8, 5.8, 8.8, 10.9, 12.9
Property class — stainless	A2-70, A2-80, A4-70, A4-80
High-temperature bolting	ASTM A193 B7 / B8 / B8M studs with ASTM A194 2H / 8 / 8M nuts
Finish	Plain, hot dip galvanised, zinc plated, PTFE / Xylan coated, phosphated, cadmium plated
Standards	ASME B18.2.1 / B18.2.2, DIN 931 / 933 / 934, IS 1367, ISO 4014 / 4017

Physical Properties for Fasteners & Nut Bolts supplied by Ritvik Metal Impex
Property	SS 304 / 304L	SS 316 / 316L
Density	8.00 g/cm³	8.00 g/cm³
Melting range	1400–1450 °C	1375–1400 °C
Modulus of elasticity	193 GPa	193 GPa
Thermal conductivity (100 °C)	16.2 W/m·K	16.3 W/m·K
Specific heat (0–100 °C)	500 J/kg·K	500 J/kg·K
Thermal expansion (0–100 °C)	17.2 µm/m·°C	15.9 µm/m·°C
Electrical resistivity	720 nΩ·m	740 nΩ·m
Max continuous service temp.	≈ 870 °C	≈ 925 °C
Magnetic response (annealed)	Non-magnetic	Non-magnetic

Note: Values at 20 °C unless stated. Thermal expansion matters when austenitic stainless is welded to carbon steel.

Equivalent Grades Across Standards for Fasteners & Nut Bolts supplied by Ritvik Metal Impex
ASTM / AISI	UNS	EN / DIN	EN Name	JIS	GB
304	S30400	1.4301	X5CrNi18-10	SUS 304	06Cr19Ni10
304L	S30403	1.4307	X2CrNi18-9	SUS 304L	022Cr19Ni10
316	S31600	1.4401	X5CrNiMo17-12-2	SUS 316	06Cr17Ni12Mo2
316L	S31603	1.4404	X2CrNiMo17-12-2	SUS 316L	022Cr17Ni12Mo2
321	S32100	1.4541	X6CrNiTi18-10	SUS 321	06Cr18Ni11Ti
347	S34700	1.4550	X6CrNiNb18-10	SUS 347	06Cr18Ni11Nb
310S	S31008	1.4845	X8CrNi25-21	SUS 310S	06Cr25Ni20
430	S43000	1.4016	X6Cr17	SUS 430	10Cr17

Note: Cross-reference for enquiries written against European, Japanese or Chinese standards. Equivalents are close but not always identical — check the composition limits before substituting.

Ordering & Supply for Fasteners & Nut Bolts supplied by Ritvik Metal Impex
Parameter	Detail
Minimum order quantity	5 kg (mixed sizes within a grade can be combined to reach the MOQ)
Price basis	Ex-works Mumbai, FOB or CIF — quoted per kg, per metre or per piece depending on the form
Lead time	Ready stock dispatched in 1–3 working days; mill orders typically 2–6 weeks
Certification	Mill test certificate to EN 10204 3.1 as standard; 3.2 with third-party witness, IBR and NACE MR0175 on request
Testing available	PMI, IGC (ASTM A262), hydrostatic, ultrasonic, radiographic, impact and hardness testing
Third-party inspection	Bureau Veritas, TÜV, DNV, SGS, Lloyd's Register, Intertek, RITES and client/EPC inspection
Packing	Wooden crates or pallets, plastic caps on pipe ends, VCI wrapping where required, seaworthy export packing
Payment terms	Advance, against proforma invoice, or LC at sight for export orders
Supply area	Across India and export to the Middle East, Europe, the USA, Africa and South East Asia
Product form	Fasteners

Note: Cut lengths, non-standard sizes and special certification are available on request. Prices are quoted against grade, size, schedule and quantity.

Values shown are the specified minima and maxima published in the governing standards and are given for guidance. The mill test certificate supplied with your consignment reports the actual results for that heat.

Product Guide & Technical Article

Industrial Fasteners & Nut Bolts: Grades, Types & Applications

Industrial fasteners are the unsung heroes of engineering assemblies. From flanged pipe joints to pressure vessel covers, the correct fastener selection ensures joint integrity, safety, and long service life.

Types of Industrial Fasteners

Hex bolts and nuts for standard flange connections. Stud bolts (fully threaded) for pressure vessel and flange service. Eye bolts for lifting applications. Anchor bolts for structural connections. Threaded rods for continuous fastening. Washers and lock nuts for vibration-resistant joints.

Material Grades

Stainless Steel (AISI 304, 316, 321, 347) for corrosion resistance. Alloy Steel (ASTM A193 B7 / A194 2H) for high-temperature pressure service. Carbon Steel with galvanized, hot-dip, or cadmium plating for general structural use.

Property Classes

Carbon Steel fasteners range from Class 4.6 (low strength) to Class 12.9 (ultra high strength). Stainless Steel grades A2-70 and A4-80 are most common. Selection depends on operating temperature, pressure, and corrosion requirements.

Industries & Standards

Used in petrochemical, power, construction, marine, and automotive industries. Manufactured to ASME B18.2.1, DIN 931/933, and IS 1367 standards.

About Our Fasteners & Nut Bolts Supply

Ritvik Metal Impex is a trusted Stainless Steel Fasteners & Nut Bolts supplier and stockist based in Mumbai, Maharashtra. We supply fasteners & nut bolts across India including Mumbai, Pune, Delhi, Ahmedabad, Chennai, Hyderabad, Surat, and Bangalore, as well as export to UAE, Saudi Arabia, UK, USA, and South East Asia. Our fasteners & nut bolts are sourced from reputed mills with full material traceability and supplied with Mill Test Certificates (MTC). We offer competitive pricing, ready stock for standard sizes, and fast dispatch for urgent requirements. Contact us for the best Stainless Steel fasteners & nut bolts price in India.

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Technical Guides

In-depth reading on grades, standards and specification for this product.

Grade Selection

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Tell us the grade, size, schedule and quantity and we will confirm stock position and a firm price. Every consignment ships with a mill test certificate traceable to the heat number.

+91 7073895597|suresh.prajapat@ritvikmetalimpex.com

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Fasteners & Nut Bolts

Fasteners & Nut Bolts Specifications