Hangzhou Lizhan Hardware Co., Ltd

Chipboard ScrewsHeat Treated Case Hardened to Prevent Snapping 40 Degree Thread Angle, 25 Degree Point Angle Zinc, Yellow Zinc, Brass or Black Oxide available PATTA self-drilling Chipboard screws have a coarse thread and fine shank to provide maximum grip and minimum strip out into chipboard, MDF board and soft timbers. The head has ribs molded around the countersunk head which help remove the chipboard particles when countersinking. How to Use 1. Measure the total thickness of the materials to be fastened. 2. Choose a screw long enough to provide approx. 20mm of thread embedment into the chipboard or wood being fastened to. 3. Fit a #2 Phillips drive bit to a power screwdriver set to low speed, approx. 1000rpm. normal size M3.0 M3.5 M4.0 M4.5 M5.0 M6.0 thread diameter min. 2.8 3.3 3.75 4.25 4.7 5.7 max. 3 3.5 4 4.5 5 6 head diameter min.. 5.6 6.6 7.5 8.5 9.5 11.5 max. 6 7 8 9 10 12 pitch 1.35 1.6 1.8 2 2.2 2.6 head height max. 1.9 2.1 2.5 2.7 3 3.6 shank max. 1.6 1.8 2 2.2 2.5 3 recess no. 1 2 2 2 2 3 recess depth min. 1.6 1.6 2.05 2.6 3 3 max. 2 2.1 2.5 3.1 3.45 3.45

Drywall Screw Fast fixing of plasterboard Case hardened, Piercing Point Screws For Fixing To Light Steel or Wood Studs Without Pre-Drilling Zinc, Yellow Zinc, Black & Grey Phosphated Available.bulk or small box packing.corase or fine thread.

Case hardened, Piercing Point Screws For Fixing To Light Steel or Wood Studs Without Pre-Drilling Zinc, Yellow Zinc, Black & Grey Phosphated Available normal size #6 #7 #8 #10 thread diameter min. 3.4 3.75 4.05 4.7 max. 3.6 4 4.3 4.95 head diameter min. 8 8 8 8.8 max. 8.4 8.4 8.4 9.2 head height max. 0.8 0.8 0.8 0.8 radius min. 4 4 4 4

Drilling screw Hex washer head Sheet metal screw with a hex head and a washer attached. * Zinc plated steel * Steel is zinc plated for moderate protection against rust. * Stainless steel 18-8 * Stainless steel 18-8 is an alloy of steel with high corrosion resistance. Stainless has become the material of choice for exterior and most marine applications.

Drill bits Wood flat bits

Fasteners with a tapered shank (self-tapping screws) chipboard screw & particle board screw Similar to a drywall screw except that it has a thinner shank and provides better resistance to pull-out in particle board, while offset against a lower shear strength. The threads on particle board screws are asymmetrical. concrete screw& Tapcons & masonry screw & confast screw & blue screw & self-tapping screw & Titen A stainless or carbon steel screw for fastening wood, metal, or other materials into concrete or masonry. Concrete screws are commonly blue in color, with or without corrosion coating. They may either have a Phillips flat head or a slotted hex washer head. Heads sizes range from 0.1875 to 0.375 in (4.763 to 9.525 mm) and lengths from 1.25 to 5 in (32 to 127 mm). Typically an installer uses a hammer drill to make a pilot hole for each concrete screw. deck screw Similar to drywall screw except that it has improved corrosion resistance and is generally supplied in a larger gauge. Most deck screws have a type-17 (auger type) thread cutting tip for installation into decking materials. They have bugle heads that allows the screw to depress the wood surface without breaking it. double ended screw & dowel screw & hanger bolt Similar to a wood screw but with two pointed ends and no head, used for making hidden joints between two pieces of wood. A hanger bolt has wood screw threads on one end and machine threads on the other. A hanger bolt is used when it is necessary to fasten a metal part to a wood surface. drive screw & hammer drive screw Chiefly used for attaching manufacturers data plates to equipment. Smooth round or mushroom headed with a multi-start thread on the shank, beneath which is reduced diameter shank that acts as a pilot. The screw is fastened by hitting the head with a hammer and is not intended for removal drywall screw Specialized screw with a bugle head that is designed to attach drywall to wood or metal studs, however it is a versatile construction fastener with many uses. The diameter of drywall screw threads is larger than the grip diameter. eye screw & screw eye & vine eye Screw with a looped head. Larger ones are sometimes called lag eye screws. Designed to be used as attachment point, particularly for something that is hung from it. A vine eye (in the UK at least) is similar to a screw eye, except that it has a proportionally longer shank and smaller looped head. As the term suggests vine eyes are often used for attaching wire lines across the surface of buildings so that climbing plants can attach themselves.