--- title: "Premium Self-Drilling Screws From China for Construction Projects" description: "Premium Self-Drilling Screws From China for Construction Projects — Self-Drilling & Tek Screws. Material: Carbon Steel, Grade: 12.9. MOQ 2 tons, US$1,200." url: https://engineeringhardware.com/product/premium-self-drilling-screws-from-china-for-construction-projects/ source: Engineering Hardware & Fasteners --- # Premium Self-Drilling Screws From China for Construction Projects [![Premium Self-Drilling Screws From China for Construction Projects](https://img.engineeringhardware.com/Premium-Self-Drilling-Screws-From-China-for-Construction-Projects.webp)](https://img.engineeringhardware.com/Premium-Self-Drilling-Screws-From-China-for-Construction-Projects.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Self-Drilling & Tek Screws](https://engineeringhardware.com/fastener-products/screws/self-drilling-tek-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/premium-self-drilling-screws-from-china-for-construction-projects.md) Model no. **5.5x25mm** US$1,200 / ton MOQ 2 tons · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Hexagonal - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 12.9 - **Finish:** Zinc - **Surface:** Ruspert - **Heat:** Heat Treatment - **Head Mark:** Customization Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Premium%20Self-Drilling%20Screws%20From%20China%20for%20Construction%20Projects%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fpremium-self-drilling-screws-from-china-for-construction-projects%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 | Hexagon Head | | Model NO. | 5.5x25mm | | Groove | Hexagon | | Connection | Hinged Bolts | | Head Style | Hexagonal | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 12.9 | | Finish | Zinc | | Surface | Ruspert | | Heat | Heat Treatment | | Head Mark | Customization | | Length | Customization | | Unite Weight | Customization | | Package | Customization | | Payment | Tt,LC | | Raw Material | C1022A | | Steel | Carbon Steel | | Transport Package | Box&Carton | | Specification | 19-150 | | Origin | China | | HS Code | 7318140090 | | Production Capacity | 8000ton/Year | | Our main products are | hex head self drilling screws, countersunk self drilling screws, truss head self drilling screws, drywall screws, Chipboard screws, etc., can be processed and customized according to customer drawing requirements. | | Category | [Self-Drilling & Tek Screws](https://engineeringhardware.com/fastener-products/screws/self-drilling-tek-screws/) | ## Technical parameters | RAW MATERIAL | CARBON STEEL ,C1022A | | --- | --- | | FINISH | WHITE BLUE ZINC, YELLOW ZINC,RUSPERT ,DACROMET | | PACKAGE | CARTON&BOX, BULK BAG,BLUK CARTON | | STANDARD | DIN,GB,BSW,UNC | ## Description Premium Self-Drilling Screws From China for Construction Projects is part of our self-drilling & tek screws range (Screws). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Carbon Steel - **Grade:** 12.9 - **Length:** Customization - **Head Style:** Hexagonal - **Groove:** Hexagon - **Finish:** Zinc Available configurations include material, head style, standard, grade and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 2 tons at US$1,200 per ton. 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 Premium Self-Drilling Screws From China for Construction Projects? The listed minimum order is 2 tons, at US$1,200 per ton. 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 Premium Self-Drilling Screws From China for Construction Projects? Type: Hexagon Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Carbon Steel; Grade: 12.9; Length: Customization; Head Style: Hexagonal. 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 finish. 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/](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 [![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 & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Self-Drilling & Tek Screws →](https://engineeringhardware.com/fastener-products/screws/self-drilling-tek-screws/) [![China Fastener Hexagon Flange Triangular Self-Locking Cap Zinc Finish Self-Tapping Self-Drilling Screw for Iron Cabinet & Steel Material Hardware Screw](https://img.engineeringhardware.com/China-Fastener-Hexagon-Flange-Triangular-Self-Locking-Cap-Zinc-Finish-Self-Tapping-Self-Drilling-Screw-for-Iron-Cabinet-Steel-Material-Hardware-Screw.webp)](https://engineeringhardware.com/product/china-fastener-hexagon-flange-triangular-self-locking-cap-zinc-finish-self-tapping/) Self-Drilling & Tek Screws ### [China Fastener Hexagon Flange Triangular Self-Locking Cap Zinc Finish Self-Tapping Self-Drilling Screw for Iron Cabinet & Steel Material Hardware 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Head · DIN, GB, ANSI, BSW, JIS, GOST, According to The Customer… **US$0.12**MOQ 100,000 pieces [![Carbon Steel Galvanized Stainless Steel 304 M4.2/M4.8 Pan Head Self Drilling Tapping Screw with Phillips Drive Self Drilling Screw/Galvanized Drill Tail Screw](https://img.engineeringhardware.com/Carbon-Steel-Galvanized-Stainless-Steel-304-M4-2-M4-8-Pan-Head-Self-Drilling-Tapping-Screw-with-Phillips-Drive-Self-Drilling-Screw-Galvanized-Drill-Tail-Screw.webp)](https://engineeringhardware.com/product/carbon-steel-galvanized-stainless-steel-304-m4-2-m4-8-pan-head-self-drilling-tapping-3/) Self-Drilling & Tek Screws ### [Carbon Steel Galvanized Stainless Steel 304 M4.2/M4.8 Pan Head Self Drilling Tapping Screw with Phillips Drive Self Drilling Screw/Galvanized Drill Tail Screw](https://engineeringhardware.com/product/carbon-steel-galvanized-stainless-steel-304-m4-2-m4-8-pan-head-self-drilling-tapping-3/) Carbon Steel · #6-#10 **US$1,488 – 1,584**MOQ 2 tons **US$1,200**MOQ 2 tonsGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Premium%20Self-Drilling%20Screws%20From%20China%20for%20Construction%20Projects%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fpremium-self-drilling-screws-from-china-for-construction-projects%2F)