--- title: "SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw" description: "SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw — Countersunk & Flat-Head Machine Screws. MOQ 100 mpcs, US$1.22 – 1.32." url: https://engineeringhardware.com/product/sq-2-countersunk-head-blue-ruspert-exterior-decking-screw/ source: Engineering Hardware & Fasteners --- # SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw [![SQ #2 Countersunk Head Blue Ruspert Exterior Decking Screw](https://img.engineeringhardware.com/SQ-2-Countersunk-Head-Blue-Ruspert-Exterior-Decking-Screw.webp)](https://img.engineeringhardware.com/SQ-2-Countersunk-Head-Blue-Ruspert-Exterior-Decking-Screw.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/sq-2-countersunk-head-blue-ruspert-exterior-decking-screw.md) Model no. **MS240661** | **US$1.32**100–999 mpcs | **US$1.22**1,000+ 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 Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20SQ%20%232%20Countersunk%20Head%20Blue%20Ruspert%20Exterior%20Decking%20Screw%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fsq-2-countersunk-head-blue-ruspert-exterior-decking-screw%2F) 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](https://engineeringhardware.com/fastener-products/screws/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/](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 [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & 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custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Countersunk & Flat-Head Machine Screws →](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) [![Customized CNC Machining Titanium Screws Gr2 Gr5 for Industrial Purposes](https://img.engineeringhardware.com/Customized-CNC-Machining-Titanium-Screws-Gr2-Gr5-for-Industrial-Purposes.webp)](https://engineeringhardware.com/product/customized-cnc-machining-titanium-screws-gr2-gr5-for-industrial-purposes/) Countersunk & Flat-Head Machine Screws ### [Customized CNC Machining Titanium Screws Gr2 Gr5 for Industrial Purposes](https://engineeringhardware.com/product/customized-cnc-machining-titanium-screws-gr2-gr5-for-industrial-purposes/) Countersunk Head · DIN, GB, ANSI, BSW, JIS **US$0.012 – 0.12**MOQ 1,000 pieces [![Premium Stainless Steel Half Countersunk Machine Screws for Industrial 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Flat Head Machine Screw](https://engineeringhardware.com/product/m3-m8-all-size-iso7046-din965-ss304-screws-stainless-steel-countersunk-cross/) Countersunk Head · DIN7991 **US$0.0024 – 6.76**MOQ 100 pieces **US$1.22 – 1.32**MOQ 100 mpcsGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20SQ%20%232%20Countersunk%20Head%20Blue%20Ruspert%20Exterior%20Decking%20Screw%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fsq-2-countersunk-head-blue-ruspert-exterior-decking-screw%2F)