---
title: "Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry"
description: "Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry — Self-Tapping & Thread-Forming Screws. MOQ 1,000 pieces, US$0.012 – 0.06."
url: https://engineeringhardware.com/product/oxidation-resistance-countersunk-head-custom-self-tapping-screw-for-diy-carpentry/
source: Engineering Hardware & Fasteners
---

# Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry

[![Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry](https://img.engineeringhardware.com/Oxidation-Resistance-Countersunk-Head-Custom-Self-Tapping-Screw-for-DIY-Carpentry.webp)](https://img.engineeringhardware.com/Oxidation-Resistance-Countersunk-Head-Custom-Self-Tapping-Screw-for-DIY-Carpentry.webp)

- Standard & made-to-drawing parts
- Checked before shipping
- Air, sea & express delivery

[Screws › Self-Tapping & Thread-Forming Screws](https://engineeringhardware.com/fastener-products/screws/self-tapping-thread-forming-screws/)

Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/oxidation-resistance-countersunk-head-custom-self-tapping-screw-for-diy-carpentry.md)

Model no. **ST2.2, ST2.9, ST3.5, ST4.2, ST4.8, ST5.5**

US$0.012 – 0.06 / piece

MOQ 1,000 pieces · Final price confirmed in your quote

- **Material:** Carbon Steel, Stainless Steel
- **Shape of Head:** Round
- **Surface Finishing:** Polishing
- **Customized:** Customized
- **Standard:** GB / DIN / ISO
- **Size:** Customizable
- **Head Style:** Round
- **OEM Custom:** Yes

Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Oxidation%20Resistance%20Countersunk%20Head%20Custom%20Self-Tapping%20Screw%20for%20DIY%20Carpentry%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Foxidation-resistance-countersunk-head-custom-self-tapping-screw-for-diy-carpentry%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, Stainless Steel |
| Shape of Head | Round |
| Model NO. | ST2.2, ST2.9, ST3.5, ST4.2, ST4.8, ST5.5 |
| Surface Finishing | Polishing |
| Customized | Customized |
| Product Name | Self-Tapping Screw |
| Keywords | Countersunk Head Self-Tapping Screw |
| Standard | GB / DIN / ISO |
| MOQ | 1000PCS |
| Connection | Common Bolt |
| Size | Customizable |
| Delivery Time | 7-15 Working Days |
| Head Style | Round |
| Groove | Cross / Torx / Square |
| Certificate | ISO9001 / ISO14001 / ISO45001 / IATF16949 |
| Feature | Durable, High Hardness, Environmental |
| Application | Decoration, Industry, Equipment |
| OEM Custom | Yes |
| ODM Custom | Yes |
| Sample | Yes |
| Transport Package | Carton+Pallet |
| Specification | ST2.2, ST2.9, ST3.5, ST4.2, ST4.8, ST5.5 |
| Origin | Jiangsu, China |
| Production Capacity | 400tons/Month |
| Category | [Self-Tapping & Thread-Forming Screws](https://engineeringhardware.com/fastener-products/screws/self-tapping-thread-forming-screws/) |

## Technical parameters

| Thread Specification | ST2.2 | ST2.9 | ST3.5 | (ST3.9) | ST4.2 | ST4.8 | ST5.5 |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| P | Thread Pitch | 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 |  |
| a | Max | 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 |  |
| dk | Max=Nominal | 4.3 | 5.5 | 6.8 | 7.5 | 8.1 | 9.5 | 10.8 |  |
| Min | 4 | 5.2 | 6.44 | 7.14 | 7.74 | 9.14 | 10.37 |  |  |
| k | ≈ | 1.3 | 1.7 | 2.1 | 2.3 | 2.5 | 3 | 3.4 |  |
| y | Max | Type C | 2 | 2.6 | 3.2 | 3.5 | 3.7 | 4.3 | 5 |
| Type F | 1.6 | 2.1 | 2.5 | 2.7 | 2.8 | 3.2 | 3.6 |  |  |
| Slot Number | 1 | 1 | 2 | 2 | 2 | 2 | 3 |  |  |
| M1 | ≈ |  | 2.5 | 3 | 4.2 | 4.6 | 4.7 | 5.1 | 6.8 |
| M2 | ≈ |  | 2.4 | 2.8 | 4 | 4.2 | 4.4 | 5 | 6.3 |

| Thread Specification | ST2.2 | ST2.9 | ST3.5 | (ST3.9) | ST4.2 | ST4.8 | ST5.5 |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| P | Thread Pitch | 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 |
| a | Max | 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 |
| dk | Max=Nominal | 4.3 | 5.5 | 6.8 | 7.5 | 8.1 | 9.5 | 10.8 |
| Min | 4 | 5.2 | 6.44 | 7.14 | 7.74 | 9.14 | 10.37 |  |
| f | ≈ |  |  |  |  |  |  |  |
| k | ≈ | 1.3 | 1.7 | 2.1 | 2.3 | 2.5 | 3 | 3.4 |
| y | Type C | 2 | 2.6 | 3.2 | 3.5 | 3.7 | 4.3 | 5 |
| Type F | 1.6 | 2.1 | 2.5 | 2.7 | 2.8 | 3.2 | 3.6 |  |
| Slot Number | 1 | 1 | 2 | 2 | 2 | 2 | 3 |  |
| M1 | ≈ | 2.5 | 3 | 4.2 | 4.6 | 4.7 | 5.1 | 6.8 |
| M2 | ≈ | 2.4 | 2.8 | 4 | 4.2 | 4.4 | 5 | 6.3 |

## Description

Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry is part of our self-tapping & thread-forming screws range (Screws).

### Key details

- **Standard:** GB / DIN / ISO
- **Material:** Carbon Steel, Stainless Steel
- **Size:** Customizable
- **Head Style:** Round
- **Groove:** Cross / Torx / Square
- **Connection:** Common Bolt
- **Application:** Decoration, Industry, Equipment
- **Shape of Head:** Round

Available configurations include material, shape of head, surface finishing, customized and standard. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

### Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$0.012 – 0.06 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 Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry?

The listed minimum order is 1,000 pieces, at US$0.012 – 0.06 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 Oxidation Resistance Countersunk Head Custom Self-Tapping Screw for DIY Carpentry?

Standard: GB / DIN / ISO; Material: Carbon Steel, Stainless Steel; Size: Customizable; Head Style: Round; Groove: Cross / Torx / Square; Connection: Common Bolt. The full specification table and any technical parameter tables are listed on this page.

### Can this product be customized (OEM)?

Listed configurations include material, shape of head, surface finishing, customized and standard. 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-tapping & thread-forming screws are available?

The Self-Tapping & Thread-Forming Screws category lists 4,881 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/self-tapping-thread-forming-screws/](https://engineeringhardware.com/fastener-products/screws/self-tapping-thread-forming-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-Tapping & Thread-Forming Screws →](https://engineeringhardware.com/fastener-products/screws/self-tapping-thread-forming-screws/)

[![Steel Zinc Plating Hex Head Self Tapping Screws with Washer](https://img.engineeringhardware.com/Steel-Zinc-Plating-Hex-Head-Self-Tapping-Screws-with-Washer.webp)](https://engineeringhardware.com/product/steel-zinc-plating-hex-head-self-tapping-screws-with-washer/)

Self-Tapping & Thread-Forming Screws

### [Steel Zinc Plating Hex Head Self Tapping Screws with Washer](https://engineeringhardware.com/product/steel-zinc-plating-hex-head-self-tapping-screws-with-washer/)

Hexagon Head · DIN, GB, ANSI, JIS

**US$0.19 – 0.24**MOQ 5,000 pieces

[![DIN 7982f St2.9 Stainless Steel Fastener Self Tapping Drilling Screw in Wood](https://img.engineeringhardware.com/DIN-7982f-St2-9-Stainless-Steel-Fastener-Self-Tapping-Drilling-Screw-in-Wood.webp)](https://engineeringhardware.com/product/din-7982f-st2-9-stainless-steel-fastener-self-tapping-drilling-screw-in-wood/)

Self-Tapping & Thread-Forming Screws

### [DIN 7982f St2.9 Stainless Steel Fastener Self Tapping Drilling Screw in Wood](https://engineeringhardware.com/product/din-7982f-st2-9-stainless-steel-fastener-self-tapping-drilling-screw-in-wood/)

Screw-Self Tapping Drilling · DIN, ISO

**US$0.012 – 0.22**MOQ 1,000 pieces

[![Phillips Flat Head Self Tapping Screw SUS304 Thin Flat Head Wooden Screw Wood Screw](https://img.engineeringhardware.com/Phillips-Flat-Head-Self-Tapping-Screw-SUS304-Thin-Flat-Head-Wooden-Screw-Wood-Screw.webp)](https://engineeringhardware.com/product/phillips-flat-head-self-tapping-screw-sus304-thin-flat-head-wooden-screw-wood-screw/)

Self-Tapping & Thread-Forming Screws

### [Phillips Flat Head Self Tapping Screw SUS304 Thin Flat Head Wooden Screw Wood Screw](https://engineeringhardware.com/product/phillips-flat-head-self-tapping-screw-sus304-thin-flat-head-wooden-screw-wood-screw/)

Round Head · DIN

**US$0.0012 – 0.006**MOQ 10,000 pieces

[![Flange Washer Head Construction Screw Self Tapping Wood Screw](https://img.engineeringhardware.com/Flange-Washer-Head-Construction-Screw-Self-Tapping-Wood-Screw.webp)](https://engineeringhardware.com/product/flange-washer-head-construction-screw-self-tapping-wood-screw/)

Self-Tapping & Thread-Forming Screws

### [Flange Washer Head Construction Screw Self Tapping Wood Screw](https://engineeringhardware.com/product/flange-washer-head-construction-screw-self-tapping-wood-screw/)

Round Head · GB

**US$1.24 – 1.32**MOQ 1 mpcs

[![Stainless Steel Slotted Indented Hexagon Washer/Flange Head Antiskid Self-Tapping/Wood Screw](https://img.engineeringhardware.com/Stainless-Steel-Slotted-Indented-Hexagon-Washer-Flange-Head-Antiskid-Self-Tapping-Wood-Screw.webp)](https://engineeringhardware.com/product/stainless-steel-slotted-indented-hexagon-washer-flange-head-antiskid-self-tapping/)

Self-Tapping & Thread-Forming Screws

### [Stainless Steel Slotted Indented Hexagon Washer/Flange Head Antiskid Self-Tapping/Wood Screw](https://engineeringhardware.com/product/stainless-steel-slotted-indented-hexagon-washer-flange-head-antiskid-self-tapping/)

Stainless Steel · Phillips /Slotted /Hex /Round /Torx

**US$0.0972 – 0.13**MOQ 10,000 pieces

[![Carbon Steel DIN7972 Slotted Countersunkhead Tapping Screws](https://img.engineeringhardware.com/Carbon-Steel-DIN7972-Slotted-Countersunkhead-Tapping-Screws.webp)](https://engineeringhardware.com/product/carbon-steel-din7972-slotted-countersunkhead-tapping-screws/)

Self-Tapping & Thread-Forming Screws

### [Carbon Steel DIN7972 Slotted Countersunkhead Tapping Screws](https://engineeringhardware.com/product/carbon-steel-din7972-slotted-countersunkhead-tapping-screws/)

Countersunk Head · DIN, GB, ANSI, BSW, JIS, GOST

**US$0.28**MOQ 1,000 pieces

[![Customized Taiwan Quality Structural Construction Type 17 Multi-Purpose Framing Tornillo Torx Csk Self Tapping Wafer Head Wood Timber Screw](https://img.engineeringhardware.com/Customized-Taiwan-Quality-Structural-Construction-Type-17-Multi-Purpose-Framing-Tornillo-Torx-Csk-Self-Tapping-Wafer-Head-Wood-Timber-Screw.webp)](https://engineeringhardware.com/product/customized-taiwan-quality-structural-construction-type-17-multi-purpose-framing/)

Self-Tapping & Thread-Forming Screws

### [Customized Taiwan Quality Structural Construction Type 17 Multi-Purpose Framing Tornillo Torx Csk Self Tapping Wafer Head Wood Timber Screw](https://engineeringhardware.com/product/customized-taiwan-quality-structural-construction-type-17-multi-purpose-framing/)

Ss/Steel · Hex

**US$0.012 – 0.018**MOQ 300 mpcs

[![Truss Head Wood Screws, Self Tapping Screws, 304 Carbon Steel 18/8, Mushroom Head, Jisb1122t](https://img.engineeringhardware.com/Truss-Head-Wood-Screws-Self-Tapping-Screws-304-Carbon-Steel-18-8-Mushroom-Head-Jisb1122t.webp)](https://engineeringhardware.com/product/truss-head-wood-screws-self-tapping-screws-304-carbon-steel-18-8-mushroom-head/)

Self-Tapping & Thread-Forming Screws

### [Truss Head Wood Screws, Self Tapping Screws, 304 Carbon Steel 18/8, Mushroom Head, Jisb1122t](https://engineeringhardware.com/product/truss-head-wood-screws-self-tapping-screws-304-carbon-steel-18-8-mushroom-head/)

Round Head · DIN, GB, ANSI, BSW, JIS, GOST

**US$0.012 – 0.0168**MOQ 1,000 pieces

**US$0.012 – 0.06**MOQ 1,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Oxidation%20Resistance%20Countersunk%20Head%20Custom%20Self-Tapping%20Screw%20for%20DIY%20Carpentry%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Foxidation-resistance-countersunk-head-custom-self-tapping-screw-for-diy-carpentry%2F)