Countersunk head structural wood Timber screw

· No pre-drilling required
· Faster driving, lower driving torque
· Shank knurl aids in torque reduction
· Type-17 point for fast starts

Additional information

Size

M3~M8, 16mm ~ 400mm

Material

carbon steel 1022

Head Type

Hex , Flat, Pan, Truss, Round, Hex Washer, Oval, Pan Framing, Bugle, Fillister

Drive Type

Phil, Torx, slotted, Phil & Slotted combination, Hex Socket

Thread

full tread, particial threat

Finish

Zinc plated(clear/bule/yellow), black/grey phosphate, nickel, ruspert, painted

Packing

Bulk in cartons (25kg Max.) + wooden pallets or according to customer demand.

Application

CLT wall-to-wall, floor-to-floor, panel-to-beam, panel-to-wall, surface spline, lap joint and ledger connections, general timber framing

Countersunk head structural wood Timber screw

CSK head timber screws have a round flat head with a torx drive and are partially threaded.
The large, flat head and underhead nibs provide for clean countersinking, flush with the surface. Predrilling is not typically required. For interior and dry applications only.

Type 17 cutting point: A thread cutting screw for wood with a coarse tapping screw thread and a special long sharp point fluted to capture chips. Type 17 points can also be on Hi-Lo, deep root, deck screws and partical board screws, designed for the manufacturing of face frames on cabinetry. Smooth shank for a tight fit and a Type 17 point eliminates pre-drilling.

the top manufacturer of BI-METAL SCREW in China

Fastener SS304/SS316 Body + SS410/420/CS Point, Self Drilling/Tapping Roofing Bi-Metal Screw with SS EPDM Washer

Our bi-metal screw is made by welding stainless steel together with SS420 or carbon steel.

Its head and body is composed of 300 series stainless steel for corrosion resistance, and its point is composed of SS420 or carbon steel hardened for self-drilling and self-tapping.

Our sharp point bi-metal screw drill capacity is up to 1mm+1mm galvanized steel plate without pre-dirlling, which improves work efficiency for projects.

You will see from videos of:

· How is bi-metal screw made

· How bi-metal screws are tested

TEST REPORT OF BI-METAL SCREW

The SuperFix Bi-metal Screws are well tested such as:
· Hardness
· Torque test
· Wring Force
· Tensile Strength
· The shear stress
· Extraction resistance and pull through
· Coating thickness SST (up to 1500 hrs)

More Bi-Metal Screws

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  2. Hex washer head Bi-metal screw with A2 bonded washer drill point
  3. Wafer head Bi-metal self drilling screw ruspert coated 500hrs
  4. CSK head Bi-metal Tek self drilling screw ruspert coated

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