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Screws › Countersunk & Flat-Head Machine Screws

SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw

Updated 2026-11-04 · Markdown version

Model no. MS240661

US$1.32100–999 mpcs

US$1.221,000+ mpcs

MOQ 100 mpcs · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Csk
Standard: GB
Grade: 5.6
Color: Blue,Brown,Gray,Yellow,Color,White
Package Size: 10.00cm * 10.00cm * 9.00cm
Finish: Blue Ruspert Coating

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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	Countersunk Head
Model NO.	MS240661
Groove	Square
Connection	Common Bolt
Head Style	Csk
Standard	GB
Grade	5.6
Color	Blue,Brown,Gray,Yellow,Color,White
Delivery	30days,45days,60days,Follow Customer Wishes
Application	Chipboard Screw for Laminated Wood,Plywood.,Wood.
Other	Partially Threaded
Recess	Sq #2
Transport Package	Bulk, Bag, Box, Plastic Barrel
Specification	M3.5 M4 M5 M5.5 M6
Origin	Zhejiangchina
HS Code	731814
Production Capacity	60000tons/Year
Package Size	10.00cm * 10.00cm * 9.00cm
Package Gross Weight	0.500kg
Finish	Blue Ruspert Coating
chipboard screw	Smooth surfaces due to cutting ribs below head.
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

Name	Double CSK Square Head Blue Ruspert Wood Screw
Size	From 2.5x12mm to 6x160 mm
Length	12-160
Head	CSK Square Drive
Thread	Full Thread,1/2 Thread,2/3 Thread
wire diameter	2.58,2.65,2.75
Material	C1022,carbon steel,alloy steel
Finish:	Blue Ruspert Coating
Packing	Bulk, Small Box, Carton, Plastic Bag, Custom Made Requirement
Origin	Zhejiang,China
Application	BLUE LOOSE PURLIN SCREWS For use in purlin and batten fixing.

Description

SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Countersunk Head
Standard: GB
Material: Carbon Steel
Grade: 5.6
Head Style: Csk
Groove: Square
Finish: Blue Ruspert Coating
Connection: Common Bolt

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 100 mpcs at US$1.22 – 1.32 per mpcs. 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 SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw?

The listed minimum order is 100 mpcs, at US$1.22 – 1.32 per mpcs. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$1.32 for 100–999 mpcs; US$1.22 for 1,000+ mpcs. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw?

Type: Countersunk Head; Standard: GB; Material: Carbon Steel; Grade: 5.6; Head Style: Csk; Groove: Square. 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 color. 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 countersunk & flat-head machine screws are available?

The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-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

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Request a quote for this product

US$1.22 – 1.32MOQ 100 mpcsGet a quote WA