St3.5/4.2 Carbon Steel Pan Head Self-Tapping Screw Zin-Plated St4 4.2 4.8 5 5.3 6 6.3

• Material: Carbon Steel
• Type: Pan Washer Head
• Groove: Square
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: ST3.5/3.9/4.2/4.8
• Connection: Common Bolt
• Head Style: Round
• Standard: Customized
• Grade: 4.8
• Quality Certifications: ISO9001, IATF 16949
• Customized: Accept (OEM/ODM)
• Sample Charge: Free
• Exterior Finish: Black/Zinc/Nickel or Customized
• Transport Package: Carton Boxes + Pallets
• Specification: ST4/4.2/4.8
• Trademark: JX
• Origin: Hangzhou/China
• HS Code: 7318150000
• Production Capacity: 2000 Tons Per Quarter
• Package Size: 26.00cm * 26.00cm * 14.00cm
• Package Gross Weight: 22.000kg

Product Description

Self-tapping Screw

A self-tapping screw is a screw that can tap its own hole as it is driven into the material. More narrowly, self-tapping is used only to describe a specific type of thread-cutting screw intended to produce a thread in relatively soft material or sheet materials, excluding wood screws. Other specific types of self-tapping screw include self-drilling screws and thread rolling screws.

Self-tapping screws have a wide range of tip and thread patterns, and are available with almost any possible screw head design. Common features are the screw thread covering the whole length of the screw from tip to head and a pronounced thread hard enough for the intended substrate, often case-hardened.

 

Product Name	Drywall Screw
Material	Carbon Steel
Grade	450-800HV
Diameter	ST3.5/3.9/4.2/4.8
Length	16-100
Exterior Finish	Zinc/Black

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