S. S. Fasteners

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Stainless Steel Bolts & Nuts for water Projects and Water Reservoirs
Stainless Steel Bolts & Nuts

Rollfast manufacturers the complete range of stainlbess steel bolting in SS 202, SS 316 & SS 304 used in projects related to water treament, Sewage water Treatment Plants desalination plants, water equipment, for flange joints & pumps. SS 202, SS 316, SS 304 grade nuts and Bolts for the ever growing demands for water storage resevairs and projects in middle east. These bolts and nuts are used for joining Pipeless using pumps and valves.





High Tensile Bolts & Nuts
High Tensile Bolts & Nuts

We at Rollfast manufacture speciality fasteners in many grades in stailess steel and alloy steel.Our expertise over the years has resulted in us providing material in shorter delivery times as per customers drawings or prototype samples.

• Hex Bolts & Nuts in DIN 931 and 933
• Stud Bolts & Nuts ASTMA - 193 and A - 194
• Foundation Bolts
• Anchore Bolts
• Testing and Quality Control

We have a long standing tradtion of providing uncompromised quality fasteners, we relentlessly conduct series of quality checks like UTS testing, profile checks, destructive and all other kinds of non destructive testings.



High Tensile Bolts & Nuts

Materials : Stainless Steel, AISI 202, 304 & 316
Threads : METRIC, BSW, BSF, UNC, UNFm AS REQUIRED
Size Thread : M3 to M20, 1/8" to 3/4"
Length Range : 8 mm to 150 mm, 3/8" to 6"
Standard : DIN, ISO, IS, BS, ANSI

We are committed to satisfy the needs and expansions of our customer by manufacturing and supplying Alloy Steel & Stailess Steel Fasteners of stated quality, timely delivery and reliable services at all times.

We strive for continuos improvements throught productivity and employee participation.We make sure each and every product face rigorous inspection stages during production process before they make it to the box, ready for shipment. The management shall promote Quality at all levels through execution of the quality management system complying to ISO 9001 : 2008 Standard.

We always aim to give zero defect products to our customers. Every Products is certified after final inspection and packaging for its conformance against specified international standards or customers specific requirements. We always belive in continuos improvement in our products keeping in view of customers requirement.



Note :
• Special Stainless Steel Grade Available on request
• We can develop product as per customers specification / drawing
• All austenitic stainless steel fasteners are normally non-magnetic; after cold working, some magnetic properties may be evedent please ref: ISO 3506-1 standard
• Material test certificate is provided as per the EN 10204 : 3, 1B/3.1 stadard
• PMPL - hot forged stainless steel and high tensile bolts and sockets in grades 8.8, 10.9 and 12.9, SS 304, SS 202, SS 316 L, 316S31, 316S33, A2 & A4, ASTM Grades B8m B8M in class 1 and Class 2


Chemical Composition

Grade Material Similar to.. C Max MN Max P Max S Max SI Max CR NI MO
A2 / B8 AISI 304 0.08 2.00 0.05 0.030 1.00 17.00 - 20.00 8.0 - 13.0 -
A4 / B8M AISI 314 0.08 2.00 0.05 0.030 1.00 16.00 - 18.50 10.0 - 14.4 2.00 - 3.00


Physical Composition

Grade Standard Property Class Tensile Strength Min.(N / mm2) Yield Strength
0.2% offset Min.
(N / mm2)
Elongation After Fracture AL
mm Min.
A2 & A4 ISO 3506 70 700 450 0.4d
    80 800 600 0.3
Grade Standard Property Class Diameter Inch. Tensile Strength MIin.(KSI) Yield Strength 0.2% Offset Min.(KSI) Elongation in 4D Min. % Reduction of Area Min % Hardness (Max.) Rockwell
B8 ASTM
A193 /
A193M
Class 1 All 75 30 30 50 B96
Class 2 To 3/4 125 100 12 35 C35
B8M   Class 1 Over 3/4
to 1
115 80 15 35 C35
All 75 30 30 50 B96
Class 2 To 3/4 110 96 15 15 C35
      Over 3/4
to 1
100 80 20 45 C35

Torsional Strength as per ISO 3506

Thread ST 2.2 ST2.6 ST2.9 ST3.3 ST3.5 ST3.9 ST4.2 ST4.8 ST5.5 ST6.3 ST 8
Min.Torsional Strength NM 0.45 0.9 1.5 2 2.7 3.4 4.4 6.3 10 13.6 30.5

For Austenitic Bolts and Screws M1.6 to M1.6 to M1.6 (Coarse Thread)

Grade Standard   M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16
Min.Breaking Torque, MB Min.NM Property Class 70 0.20 0.4 0.9 1.6 3.8 7.8 13 32 65 110 290
80 0.24 0.48 0.96 1.8 4.3 8.8 15 37 74 130 330
Austenitic Bolts


We believe in the mantra of Do it fast, Do it Right, and it cost-effective and thats what has given us the strength to be one of the distinguished manufacturers of ally steel & stainless steel cold forged fasteners (Bolts, Nuts, Screws, Threaded Rods, Nails & U-Bolts).

Our modernized well-equipped manufacturing unit, expert technicians, well-trained manpower and dedicated sales support have over the years reinforced us to move forward, and as a result we are not only able to cater to the Indian market but also export our fasteners to the International market.


Contact Us

Parmar Industries
Gat No. 13 & 20, Sahajpur Industrial Area,
B/h. Perfect Engine Component, Village-Sahajpur,
Pune-Sholapur Road, Near Urulikanchan,
Pune - 412202 Maharashtra, India.
Tel. No. : +91 - 2119 - 242041
Mobile : +91 - 9371232231