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Screw Types and Information

The information below details the different kind of recess and head types that are available from the TIMco range of screws, fixings and fasteners.

Recess Types

torx recess
TX DRIVE RECESS / TORX DRIVE
High performance recess on TIMco Multi-Fix and Velocity Screws.

cross recess
CROSS-RECESS / POZI RECESS
Standard recess for woodscrews, chipboard screws etc.

Phillips Recess
PHILLIPS RECESS
Standard recess for self-drilling and drywall screws.

Slotted Recess
SLOTTED RECESS
Traditional recess for certain woodscrews.

Square Recess

SQUARE RECESS / ROBERTSON DRIVE
Recess on square drive pan self-drilling screws.

 

 

Head Type

Countersunk Head

COUNTERSUNK HEAD
Designed for countersinking into timber for a flush or recessed finish.

Double Countersunk Head

DOUBLE COUNTERSUNK HEAD
Improved design on the countersunk head to give additional head strength and assist countersinking.

Countersunk Ribbed Head

COUNTERSUNK RIBBED HEAD
Small ribs on the countersink to assist completion of countersinking.

Bugle Head

BUGLE HEAD
A curved surface under the head to prevent damage or tearing to the plasterboard paper.

Rasied Head Countersunk

RAISED HEAD COUNTERSUNK
A countersunk head with a slight raised dome for an attractive finish. Ideal for use in hinges.

Pan / Round Head

PAN / ROUND HEAD
Head with a flat underside. Designed for application fixing against metal surfaces.

Wafer Head or Flange Head

WAFER HEAD OR FLANGE HEAD
Low profile head with a flat underside for applications where a large clamping area and an unobtrusive head is required.

Hex Head Washer Face

HEXAGON HEAD WASHER FACE
Positive drive Hex Head with an integral washer to increase clamping effectiveness.

Hex Head with Washer

HEXAGON HEAD WITH WASHER
As above with EPDM washer to prevent water ingress.



Thread Types

Coarse Thread

COARSE THREAD (up to 16 TPI)
Also know as spaced threads, they are normally used for all timber applications and for steel with lesser thickness (1-2.4mm normally).

Fine Thread

FINE THREAD (over 16 TPI)
Also known as metric threads, they are only used in steel applications. Fine threads are for use with thicker steels (2.4 - 12mm thickness).

Twin Thread

TWIN THREAD
Also known as twin lead threads, they are designed to give a fast insertion time in soft material.

Hi-Lo Thread

HI-LO THREAD
Is used in soft timbers, plastics and into thin sheet sections. Hi-Lo threads have superior holding power compared to a low TPI coarse thread in these types of material.



Point Styles

Needle/Gimlet Point

NEEDLE / GIMLET AND SUPER SHARP POINT (SS)
Designed for piercing timber, mdf, plastic and light gauge metal up to 0.6mm without pre-drilling.

AB Point

AB POINT
For use in heavy sheet material applications.

B Point

B POINT
For use in shallow holes.

Self Drill Point

SELF DRILL POINT
For drilling into metals without the need for pre-drilling.

Type 17 Point

TYPE 17 POINT
Also known as slash point, they are used for fixing timber without the need to pre-drill. The slot at the end forms a cutting edge which reduces splitting of timber. It also penetrates thin sheet metal if required.

Double Slash Point

DOUBLE SLASH POINT
Designed to assist precisely when used in hard material such as plastic and thin sheet metal.

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