Metal Bolts and Studs

We offer a wide range of metal bolts and studs. While bolts can be described as long shafts with a distinct head on one side. These are generally partially threaded.  A fully threaded bolt is referred as a Screw. A stud is a fastener that uses a nut screw to increase or loosen tension between the parts it is fastening or holding together.

Following is our range of bolts:

Hex screws

Hex bolts

Lag bolts/screws

Square neck carriage bolts

Dome bolt

Weld Stud Bolts

Lifting eye bolts – DIN 580

HSFG structural bolts

Tool post bolts

Hex screws: 

The work horse of any industry, the ubiquitous screw is needed in every machinery in some size or the other. We have a varied range to cater to all your different needs.

Metric Series:

IS 1364, ISO 4014, DIN 931 Half Thread, DIN 933

Materials: Titanium, Alloy Steel (high tensile), mild steel, Brass and stainless steel (aisi 304 and 316)

Mechanical: For alloy steel property class 8.8 and 10.9 as per IS 1367, ISO 898 part I.

For mild steel 4.6 class

Size Range : M2.5 to M36 .Lengths from 10mm to 400mm

Download Datasheets

Inch Series


Threads: BS Whitworth, BS 84

Materials: Titanium, Alloy Steel (high tensile), mild steel and stainless steel AISI304 & AISI316

Mechanical: BS 2470 for Alloy SteelSize range:(1/8”), 3/16”, ¼”, 5/16”. 3/8”, (7/16”), ½”, 5/8”, 3/4”, (7/8”), (1”). Lengths 3/8” to 8”Sizes in brackets are non-preferred standards and availability is limited

Download Datasheets

Lag Bolts/Lag Screws

Known as lag bolts or lag screws or coach screws, these are among the toughest fasteners used in the industry. These extremely sturdy fasteners are usually used to connect heavy lumber or other heavy materials that bearing intensive loads. Their distinctive feature is their huge size with their starting size being approx. 20mm long and about 6mm thick. Lag screws have sharp lead thread points and are usually hex head.


Materials: Mild Steel and Stainless Steel

DIN 571

Size Range: 5mm to 12mm diameters and 20mm to 150mm length

Typical Uses: Fixing clamps, plates to flooring, walls etc. Fixing Dish Antennas, road humps, outdoor play equipment, etc.

Download Datasheets

Square Neck Carriage Bolts 

This is known by different names such as Carriage Bolts, Coach bolts/ Round Head Square neck bolt, Mushroom Head Square neck bolt etc. Useful for fastening wood and metal together.

It is distinguished from other bolts by its shallow mushroom head followed by a square neck, while the shank cross section of the bolt is circular. This gives the bolt its self locking feature. The square neck grips into the part being fixed preventing the head from turning when the nut is tightened.

Standard – DIN 603. Mild Steel and Stainless Steel: Download Datasheets

Dome Bolt

Dome bolt has high utility in architectural metal work as it’s aesthetically appealing as a cover for threaded rods and as caps for machine screws.

Weld Studs or Bolts

Resistance welded fasteners are materially binding and can potentially eliminate the need for laborious welding operations. Premium resistance weld fasteners allow for additional components to be attached to an existing metal part, while allowing the fastener itself to stay permanently attached. Some of the different types of weld fasteners include weld nuts, weld studs and weld pins. Weld fasteners are a good solution for creating a super-strong and permanent connection between steel and the fastener.

CD Studs, or Capacitor Discharge Weld Studs, are mainly used in sheet metal applications. Where a fabricator may drill a hole to insert a bolt for an attachment point, a CD Stud can be shot to the attachment side with no reverse side marking or bolt head. This leaves a clean and well finished look to the product with no compromise in quality or strength and achieves a significant time and cost savings.
CD (capacitor discharge) stud welders utilize a capacitor storage system to produce a rapid electrical discharge, resulting in fast, high-integrity welds, even on thin-gauge materials. In contrast to arc welds, CD welds do not require ceramic ferrules or gas. The direct-current arc creates a shorter weld time, renders oxidation and heat concentration provided by ferrules and fluxes unnecessary.

These are suitable for use with Stud Welding Machines.
Our range of CD Weld Studs are as per DIN 32501/3 or ISO 13918.

Lifting eye bolts – DIN 580 / DIN 444

This is a bolt with a loop at one end. They are used to firmly attach a securing eye to a structure, so that ropes or cables may then be tied to it. The eye bolt must be of fully screwed in to achieve a perfect contact between the two mating faces. Both threads must be of a equal length and the base material of equal strength to that of the bolt.

Lifting Eye Bolts are made as per DIN 580. Also available in Long stems.

Swing Eye Bolts as per DIN 444 standards.

Materials: Mild Steel, Stainless Steel Grades AISI 304 and 316

Download Datasheets

HSFG Structural Bolts

HSFG bolts are also commonly used in structures that will be exposed to a lot of vibrations, or loadings that will reverse. Since the bolts are preloaded the tension in the bolt doesn’t vary as much as in a standard bolt, so they don’t fatigue as quickly.

Tool Post Bolts

Used for clamping on tool posts of a lathe.