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J C Gupta & Sons

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Wood Screws

Wood screws are used to fasten wood to wood or attach objects to wood and offer an aesthetically appealing finish. The purpose of wood screws is to pull wood pieces together as they are tightened making clamping superfluous. These can be removed far more easily than nails enabling the user to dismantle the assembled furniture or fixtures with relative speed and least damage.

These come in a large range:

Countersunk Slotted Head

Blunt thread angle of 60° (displaces material, risk of splitting)

Thicker minor diameter

Deforms the wood, so predrilling is recommended

The slotted screw is commonly found in existing products and installations, along with use in simple carpentry work and in applications where minimal torque is needed. Slotted screws are also used in the restoration of antique furniture, vehicles, and equipment.

Specification: DIN-97, IS-6760

DIN 97 Wood Screws CSK (-) SS-304 A2 B4B41 – Download Datasheet
DIN 97 Wood Screws CSK (-) SS-316 A4 B6B41 – Download Datasheet
DIN 97 Wood Screws CSK (-) Mild Steel-Zinc A2B41 – Download Datasheet

Coach Screw/ Lag Bolt

These are heavy duty screws designed with a square or hexagonal head engineered to be used with a wrench, spanner, or pliers.

When driven into timber, the threaded shaft bites into the wood.

Specifications:  DIN 571, IS-549

Materials: Mild Steel and Stainless Steel
Size Range:
Dia: 5mm to 12mm
Length: 20mm to 150mm
Typical Uses:
for metal to timber connections, or to join heavy timbers.

Fixing clamps, plates to flooring, walls, Dish Antennas, road humps etc

DIN 571 Coach Screw Hex SS-304 A2 B4B58 – Download Datasheet
DIN 571 Coach Screw Hex SS-316 A4 B6B58 – Download Datasheet
DIN 571 Coach Screw Hex Mild Steel-Zinc A2B58 – Download Datasheet

Chipboard Wood Screws

Chipboard Screws – TORX

Chipboard screws, also called speed screws, are developed to prevent the problems arising with the application of the conventional wood screws in chipboard and different type of wood.

This type of screw can be used in chipboard and soft wood types without pre-drilling, due to its thin core diameter and sharp angle of the thread.

This sharp thread cuts into wood with lower splitting effects, while simultaneously reducing the insertion torque. This combination increases the battery life on the used power tools and has the advantage of saving production time. The pull-out forces are also more consistent from the reduced splitting. These are normally available fully threaded.

Available in multiple Head and Drive Styles.

Pan Torx

Chipboard Screw Pan 6-Lobe SS-304 A2 B4B42 – Download Datasheet
Chipboard Screw Pan 6-Lobe SS-316 A4 B6B42 – Download Datasheet

CSK Torx

Chipboard Screw CSK 6-Lobe SS-304 A2 B4B53 – Download Datasheet
Chipboard Screw CSK 6-Lobe SS-316 A4 B6B53 – Download Datasheet

Truss Torx – Facade Screws

Facade Screw Truss 6-Lobe SS-304 A2 B4B77 – Download Datasheet

Facade Screws are also available in a range of RAL colours

Facade Screw Coloured Truss 6-Lobe SS-304 A2 U4B77 – Download Datasheet

Truss Torx – Special Hinge Screw

Chipboard Screw Truss 6-Lobe SS-304 A2 B4B77-1 – Download Datasheet

CSK Torx Half Thread Raised Head Screws

Wood Screw 6-Lobe HT RSD CSK SS-304 A2 B4B76 – Download Datasheet
Wood Screw 6-Lobe HT RSD CSK SS-316 A4 B6B76 – Download Datasheet
Wood Screw 6-Lobe HT RSD CSK SS-304 A2 and SS-316 A4 Burnished B4B76-1 B6B76-1 – Download Datasheet

Pan Pozi

Chipboard Screw Pan Pozi SS-304 A2 B4B38 – Download Datasheet
Chipboard Screw Pan Pozi SS-316 A4 B6B38 – Download Datasheet

CSK Pozi

Chipboard Screw CSK Pozi SS-304 A2 B4B39 – Download Datasheet
Chipboard Screw CSK Pozi SS-316 A4 B6B39 – Download Datasheet

Chipboard Screw CSK Pozi Half Thread SS-304 A2 B4B39-1 – Download Datasheet
Chipboard Screw CSK Pozi Half Thread SS-316 A4 B6B39-1 – Download Datasheet
Wood Screw DIN-7997 CSK Pozi Half Thread SS-304 A2 B4B52 – Download Datasheet

Using chipboard screws in harder wood types is usually problematic because the friction and insertion torque is higher, which may result in the screws breaking. To cope with occurring problems, manufacturers have designed extra features on chipboard screws.

The EXPANDET range of screws are examples of these improved designs.

Go to the Expandet Screws page.


Mirror Screws

Mirror Screws are an elegant way to fix mirrors and displays.

These are specially designed screws that come in two parts.

The screw part is the same as any other screw except that it has a tiny threaded hole drilled in the screw head, into which you screw the second part of the design – a small dome shaped cap.


USAGE GUIDE

How do you screw into particle board?

Pilot holes should be 85% of screw diameter. Pilot holes should be slightly deeper than the screw.
Screws into the face should more than an inch from the edge. Screws in the edge should be at least 2.5 inches from end.
Don’t Over-tighten Screws. When you screw into particle board, do it slowly.

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