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Outdoor Applications Double Thread Self Drilling Screws From China

Updated 2026-11-04 · Markdown version

Model no. UNF-01

US$0.11 – 0.16 / piece

MOQ 200 pieces · Final price confirmed in your quote

Material: Stainless Steel + Carbon Steel
Head Style: Hexagonal
Standard: DIN, GB, ANSI, BSW, JIS, GOST
Grade: Bi Metal
Surface Treatment: Zinc Plated, Ruspert, Dacromet, Customized
Package Size: 47.00cm * 15.00cm * 15.00cm

Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Material	Stainless Steel + Carbon Steel
Type	Hexagon Head
Model NO.	UNF-01
Groove	Hexagon
Connection	Drilling
Head Style	Hexagonal
Standard	DIN, GB, ANSI, BSW, JIS, GOST
Grade	Bi Metal
Drill Point	Drilling Screws
Surface Treatment	Zinc Plated, Ruspert, Dacromet, Customized
Delivery	Sea Freight, Air, Train, Express
Certification	Eta, ISO9001, BSCI
Application	Solar Mounting and Outdoor
Transport Package	Carton Boxes + Pallets
Specification	4.8/5.5/6.3
Origin	China
HS Code	7318151001
Production Capacity	700tons/Month
Package Size	47.00cm * 15.00cm * 15.00cm
Package Gross Weight	2.500kg
Category	Self-Drilling & Tek Screws

Technical parameters

Name	Bi-metal Self-drilling Screws
Size	6.3/5.5
Drill Point	#1, #2, #3, #5
Material	SUS304+SCM435, SUS316+SCM435
Head	Hex Washer
Thread	Double Thread
Washer	SUS304+EPDM
Washer Specification	E14, E15, E16, E19 and etc
Surface Treatment	Chrome, Ruspert, Decromet, etc
Application	Solar Mounting and Outdoor
Certification	ETA, ISO, BSCI
Origin	China

Specification
Diameter(mm)	Length(mm)	Thread Size	Drill Point
4.8	25-220	16	#1, #2, #3, #5
5.5	25-300	14	#1, #2, #3, #5
6.3	19-300	14	#1, #2, #3, #5
6.3/5.5	25-50	14	#1, #2, #3, #5
6.3/5.5	60-300	Double Thread

Surface Treatment
Types	Class2	Class3	Class4	Dacromet
Coating Material	Mechanical Galvanized	Mechanical Galvanized	Mechanical Galvanized	Zinc and Aluminum
Salt Spray Test	500Hours	1000Hours	2000Hours	1000Hours

Description

Outdoor Applications Double Thread Self Drilling Screws From China is part of our self-drilling & tek screws range (Screws).

Key details

Type: Hexagon Head
Standard: DIN, GB, ANSI, BSW, JIS, GOST
Material: Stainless Steel + Carbon Steel
Grade: Bi Metal
Head Style: Hexagonal
Groove: Hexagon
Surface Treatment: Zinc Plated, Ruspert, Dacromet, Customized
Connection: Drilling

Available configurations include material, head style, standard, grade and surface treatment. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 200 pieces at US$0.11 – 0.16 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Outdoor Applications Double Thread Self Drilling Screws From China?

The listed minimum order is 200 pieces, at US$0.11 – 0.16 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Outdoor Applications Double Thread Self Drilling Screws From China?

Type: Hexagon Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel + Carbon Steel; Grade: Bi Metal; Head Style: Hexagonal; Groove: Hexagon. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, grade and surface treatment. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other self-drilling & tek screws are available?

The Self-Drilling & Tek Screws category lists 5,114 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/self-drilling-tek-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

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US$0.11 – 0.16MOQ 200 piecesGet a quote WA