Fasteners | Kwality Steel (India)

Industrial fasteners are supplied for structural, flange, valve, machinery and plant maintenance requirements. Correct thread form, coating, strength class and material grade are essential for safe assembly performance. Kwality Steel (India) supplies stud bolts, hex bolts, nuts, washers and anchor bolts in standard and custom lengths with optional coatings for corrosion resistance and site-specific service conditions.

Size RangeM6 to M100 and custom

Wall / Pressure ClassUNC, UNF, Metric threads

TypesStud Bolts, Hex Bolts, Nuts, Washers, Anchor Bolts

StandardsASTM A193, A194, DIN, ISO, BS

FinishPlain, PTFE, Zinc, Hot Dip Galvanized

Length25 mm to 6000 mm

Materials Grades

Available in corrosion-resistant, high-temperature and pressure-grade materials for industrial service. Grade selection can be aligned with pressure, temperature, corrosion allowance and client specification.

Stainless Steel 304/304LStainless Steel 316/316LCarbon SteelAlloy SteelDuplex 2205Super Duplex 2507InconelMonelHastelloyTitanium

Fasteners Types

Stud Bolts

Preferred for flange joints, valves and pressure equipment assemblies.

Hex Bolts & Nuts

General-purpose bolting for machinery, structures and fabrication work.

Washers & Anchors

Support load distribution, alignment and foundation fixing requirements.

Dimensions Chart

Fastener dimensions cover metric diameter, pitch, across-flat size, length range and supply remarks.

Fasteners Dimensions Chart

Reference chart for bolts, nuts, washers and stud bolts.

Metric Size	Dia (mm)	Pitch (mm)	Hex A/F (mm)	Length Range (mm)	Remarks
M6	6	1.0	10	10 - 60	Nuts / washers available
M8	8	1.25	13	15 - 80	Hex bolt / stud bolt
M10	10	1.5	17	20 - 100	Full / partial thread
M12	12	1.75	19	25 - 150	Common flange bolting
M16	16	2.0	24	40 - 200	Heavy hex option
M20	20	2.5	30	50 - 250	Stud with two nuts
M24	24	3.0	36	75 - 300	High tensile / stainless
M30	30	3.5	46	100 - 400	Project supply
M36	36	4.0	55	150 - 500	Custom length