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Screws › Security & Tamper-Resistant Screws

Factory Direct Sales Resistant Security Screws

Updated 2026-11-04 · Markdown version

Model no. UNF-17

US$0.048 – 0.14 / piece

MOQ 10 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Hexagonal
Standard: DIN, GB, ANSI, BSW, JIS, GOST
Grade: 4.8, 5.8, 6.8, 8.8, 10.9, 12.9; A2-70,A4-70,A4-80
Package Size: 30.00cm * 20.00cm * 10.00cm

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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	Carbon Steel
Type	Hexagon Head
Model NO.	UNF-17
Groove	Cross
Connection	Common Bolt
Head Style	Hexagonal
Standard	DIN, GB, ANSI, BSW, JIS, GOST
Grade	4.8, 5.8, 6.8, 8.8, 10.9, 12.9; A2-70,A4-70,A4-80
Delivery	Sea Freight, Air, Train, Express
Certification	ISO9001:2015, BSCI
Sample	Yes
ODM/OEM	Accept
Transport Package	Carton Boxes + Pallets
Specification	M3.5-M4.8
Origin	China
HS Code	73181400
Production Capacity	700tons/Month
Package Size	30.00cm * 20.00cm * 10.00cm
Package Gross Weight	1.000kg
Category	Security & Tamper-Resistant Screws

Technical parameters

Union Carbon Steel Corrosion Resistant Screws

Name

Corrosion Resistant Screws Dacromet

Material

Carbon Steel

Size

M3.5-M4.8 or non-standard as request&design

Length

13mm-100mm or non-standard as request&design

Surface Treatment

Dacromet

Quality

Sample Testing Or Third-party Inspection

Origin

Made In China

Lead Time

Based on quantity

Carbon Steel Technical Details
Types	Carbon content	ANSI	hardness Level	Application	character
low-carbon steel	0.05-0.3%	C1010	4.8	Used for general screws	relatively low tensile strength
C1018	4.8	Used for Carburized screws or Thin screws with M4.0 diameter or less
C1022	5.8	-
Medium-carbon steel	0.3-0.6%	C1045	8.8	-	good wear resistance
35ACR	10.9	Used for thin screws with M4.0 diameter or less
40ACR	10.9	Used for M4~M10 diameter screws
High-carbon steel	0.6-1.0%	-		-	extremely strong yet more brittle high wear resistance
Ultra-high-carbon steel	1.25-2.0%	-		-	can be tempered to great hardness Used for special purposes

Description

Factory Direct Sales Resistant Security Screws is part of our security & tamper-resistant screws range (Screws).

Key details

Type: Hexagon Head
Standard: DIN, GB, ANSI, BSW, JIS, GOST
Material: Carbon Steel
Grade: 4.8, 5.8, 6.8, 8.8, 10.9, 12.9; A2-70,A4-70,A4-80
Head Style: Hexagonal
Groove: Cross
Connection: Common Bolt
Certification: ISO9001:2015, BSCI

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 10 pieces at US$0.048 – 0.14 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 Factory Direct Sales Resistant Security Screws?

The listed minimum order is 10 pieces, at US$0.048 – 0.14 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 Factory Direct Sales Resistant Security Screws?

Type: Hexagon Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Carbon Steel; Grade: 4.8, 5.8, 6.8, 8.8, 10.9, 12.9; A2-70,A4-70,A4-80; Head Style: Hexagonal; Groove: Cross. 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 package size. 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 security & tamper-resistant screws are available?

The Security & Tamper-Resistant Screws category lists 619 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/security-tamper-resistant-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$0.048 – 0.14MOQ 10 piecesGet a quote WA