---
title: "Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head"
description: "Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head — Countersunk & Flat-Head Machine Screws. MOQ 1,000 pieces, US$0.012 – 0.12."
url: https://engineeringhardware.com/product/ss-304-316-countersunk-hex-cap-screws-stainless-steel-flat-head/
source: Engineering Hardware & Fasteners
---

# Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head

[![Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head](https://img.engineeringhardware.com/Ss-304-316-Countersunk-Hex-Cap-Screws-Stainless-Steel-Flat-Head.webp)](https://img.engineeringhardware.com/Ss-304-316-Countersunk-Hex-Cap-Screws-Stainless-Steel-Flat-Head.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/ss-304-316-countersunk-hex-cap-screws-stainless-steel-flat-head.md)

US$0.012 – 0.12 / piece

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

- **Material:** Stainless Steel
- **Head Style:** Counter Sunk Bolt
- **Standard:** DIN, GB, ANSI, BSW, JIS, GOST
- **Grade:** 304 316
- **Standard parts:** 7-15days
- **Non-standard parts:** 15-25days

Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Ss%20304%20316%20Countersunk%20Hex%20Cap%20Screws%20Stainless%20Steel%20Flat%20Head%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fss-304-316-countersunk-hex-cap-screws-stainless-steel-flat-head%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 | Stainless Steel |
| Type | Countersunk Head |
| Groove | Hexagon |
| Connection | Common Bolt |
| Head Style | Counter Sunk Bolt |
| Standard | DIN, GB, ANSI, BSW, JIS, GOST |
| Grade | 304 316 |
| Transport Package | Plastic Bag+ Carton+Wood Pallet |
| Specification | M4-M30/1/4"-8" |
| Origin | Shanghai, China |
| HS Code | 73151900 |
| Production Capacity | 100 Tons/Month |
| All our processes strictly adhere to ISO9001 | 2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management. |
| Standard parts | 7-15days |
| Non-standard parts | 15-25days |
| Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) |

## Technical parameters

| Product Name | Hex Socket Flat Countersunk Head Screw |
| --- | --- |
| Standard | GB/DIN/BS/ANSI |
| Grade | 4.8/6.8/8.8/10.9/12.9 |
| Material | Carbon Steel/SS304/Titanium |
| Surface Treatment | Plain,Black,Zinc,HDG,Dacromet,Nickel Plated |
| Packing detailes | Woven Bag,Carton,Pallets,or as your requests. |
| Payment Terms | T/T |
| Delivery Method | by sea,by air or by express service |

| M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | M20 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |

| P | Pitch |  |
| --- | --- | --- |
| b | ref. |  |
| dk | Theoretical | max |
| Actual | min |  |
| ds | max |  |
| min |  |  |
| e | min |  |
| k | max |  |
| s | Nominal Size |  |
| max |  |  |
| min |  |  |
| t | min |  |
| Minimum tensile load(N)-8.8 |  |  |
| Minimum tensile load(N)-10.9 |  |  |
| Minimum tensile load(N)-12.9 |  |  |

| 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 18 | 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 52 |
| 6.72 | 8.96 | 11.20 | 13.44 | 17.92 | 22.40 | 26.88 | 30.80 | 33.60 | 40.32 |
| 5.54 | 7.53 | 9.43 | 11.34 | 15.24 | 19.22 | 23.12 | 26.52 | 29.01 | 36.05 |
| 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 |
| 2.303 | 2.873 | 3.443 | 4.583 | 5.723 | 6.863 | 9.149 | 11.429 | 11.429 | 13.716 |
| 1.86 | 2.48 | 3.1 | 3.72 | 4.96 | 6.2 | 7.44 | 8.4 | 8.8 | 10.16 |
| 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 10 | 12 |
| 2.080 | 2.58 | 3.08 | 4.095 | 5.140 | 6.140 | 8.175 | 10.175 | 10.175 | 12.212 |
| 2.020 | 2.52 | 3.020 | 4.020 | 5.020 | 6.020 | 8.025 | 10.025 | 10.025 | 12.032 |
| 1.1 | 1.5 | 1.9 | 2.2 | 3 | 3.6 | 4.3 | 4.5 | 4.8 | 5.6 |
| 3220 | 5620 | 9080 | 12900 | 23400 | 37100 | 53900 | 73600 | 100000 | 162000 |
| 4180 | 7300 | 11800 | 16700 | 30500 | 48200 | 70200 | 96000 | 130000 | 204000 |
| 4910 | 8560 | 13800 | 19600 | 35700 | 56600 | 82400 | 112000 | 154000 | 239000 |

| e mim=1.14 S min 80% of the values specified in ISO 898-1. |
| --- |

## Description

Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head is part of our countersunk & flat-head machine screws range (Screws).

### Key details

- **Type:** Countersunk Head
- **Standard:** DIN, GB, ANSI, BSW, JIS, GOST
- **Material:** Stainless Steel
- **Grade:** 304 316
- **Head Style:** Counter Sunk Bolt
- **Groove:** Hexagon
- **Connection:** Common Bolt
- **Standard parts:** 7-15days

Available configurations include material, head style, standard, grade and standard parts. 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 – 0.12 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 Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head?

The listed minimum order is 1,000 pieces, at US$0.012 – 0.12 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 Ss 304 316 Countersunk Hex Cap Screws Stainless Steel Flat Head?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Stainless Steel; Grade: 304 316; Head Style: Counter Sunk Bolt; Groove: Hexagon. 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 standard parts. 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 & 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 Countersunk & Flat-Head Machine Screws →](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/)

[![European Screw for Wooden Furniture Use](https://img.engineeringhardware.com/European-Screw-for-Wooden-Furniture-Use.webp)](https://engineeringhardware.com/product/european-screw-for-wooden-furniture-use/)

Countersunk & Flat-Head Machine Screws

### [European Screw for Wooden Furniture Use](https://engineeringhardware.com/product/european-screw-for-wooden-furniture-use/)

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

**US$0.60 – 12.00**MOQ 1 kilogram

[![M1.2 M1.4 M1.6 M1.7 M2 M2.5 M3 M4 M5 Cross Recessed Phillips Csk Countersunk Flat Head Machine Screws](https://img.engineeringhardware.com/M1-2-M1-4-M1-6-M1-7-M2-M2-5-M3-M4-M5-Cross-Recessed-Phillips-Csk-Countersunk-Flat-Head-Machine-Screws.webp)](https://engineeringhardware.com/product/m1-2-m1-4-m1-6-m1-7-m2-m2-5-m3-m4-m5-cross-recessed-phillips-csk-countersunk-flat/)

Countersunk & Flat-Head Machine Screws

### [M1.2 M1.4 M1.6 M1.7 M2 M2.5 M3 M4 M5 Cross Recessed Phillips Csk Countersunk Flat Head Machine Screws](https://engineeringhardware.com/product/m1-2-m1-4-m1-6-m1-7-m2-m2-5-m3-m4-m5-cross-recessed-phillips-csk-countersunk-flat/)

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

**US$0.03 – 0.06**MOQ 1,000 pieces

[![Customized Outer Hexagon Countersunk Round Nuts, Stainless Steel SUS303 Hex Step Nuts](https://img.engineeringhardware.com/Customized-Outer-Hexagon-Countersunk-Round-Nuts-Stainless-Steel-SUS303-Hex-Step-Nuts.webp)](https://engineeringhardware.com/product/customized-outer-hexagon-countersunk-round-nuts-stainless-steel-sus303-hex-step-nuts/)

Countersunk & Flat-Head Machine Screws

### [Customized Outer Hexagon Countersunk Round Nuts, Stainless Steel SUS303 Hex Step Nuts](https://engineeringhardware.com/product/customized-outer-hexagon-countersunk-round-nuts-stainless-steel-sus303-hex-step-nuts/)

GB, EN, China GB Code, JIS Code, TEMA, ASME · Nylon, Steel, Plastic, B…

**US$0.42 – 0.54**MOQ 100 pieces

[![Premium Torx Countersunk Head Screws with Steel and Nickel Finish](https://img.engineeringhardware.com/Premium-Torx-Countersunk-Head-Screws-with-Steel-and-Nickel-Finish.webp)](https://engineeringhardware.com/product/premium-torx-countersunk-head-screws-with-steel-and-nickel-finish/)

Countersunk & Flat-Head Machine Screws

### [Premium Torx Countersunk Head Screws with Steel and Nickel Finish](https://engineeringhardware.com/product/premium-torx-countersunk-head-screws-with-steel-and-nickel-finish/)

Countersunk Head · GB

**US$0.012 – 0.06**MOQ 1,000 pieces

[![Stainless Steel A2 Solid Fisheye Conical Concave Cup Countersunk Washer](https://img.engineeringhardware.com/Stainless-Steel-A2-Solid-Fisheye-Conical-Concave-Cup-Countersunk-Washer.webp)](https://engineeringhardware.com/product/stainless-steel-a2-solid-fisheye-conical-concave-cup-countersunk-washer/)

Countersunk & Flat-Head Machine Screws

### [Stainless Steel A2 Solid Fisheye Conical Concave Cup Countersunk Washer](https://engineeringhardware.com/product/stainless-steel-a2-solid-fisheye-conical-concave-cup-countersunk-washer/)

Stamping · White Zinc .Yellow Zinc. HDG

**US$0.84 – 2.40**MOQ 1,000 pieces

[![Malaxy Customized Brass Stainless Steel M2 M3 M4 M5 Countersunk Head Screw](https://img.engineeringhardware.com/Malaxy-Customized-Brass-Stainless-Steel-M2-M3-M4-M5-Countersunk-Head-Screw.webp)](https://engineeringhardware.com/product/malaxy-customized-brass-stainless-steel-m2-m3-m4-m5-countersunk-head-screw/)

Countersunk & Flat-Head Machine Screws

### [Malaxy Customized Brass Stainless Steel M2 M3 M4 M5 Countersunk Head Screw](https://engineeringhardware.com/product/malaxy-customized-brass-stainless-steel-m2-m3-m4-m5-countersunk-head-screw/)

Pan Head · DIN, GB, ANSI, BSW, JIS

**US$0.12 – 0.36**MOQ 1,000 pieces

[![Malaxy DIN 7991 Titanium Anodized Color Hexagon Socket Countersunk Head Cap Screws](https://img.engineeringhardware.com/Malaxy-DIN-7991-Titanium-Anodized-Color-Hexagon-Socket-Countersunk-Head-Cap-Screws.webp)](https://engineeringhardware.com/product/malaxy-din-7991-titanium-anodized-color-hexagon-socket-countersunk-head-cap-screws/)

Countersunk & Flat-Head Machine Screws

### [Malaxy DIN 7991 Titanium Anodized Color Hexagon Socket Countersunk Head Cap Screws](https://engineeringhardware.com/product/malaxy-din-7991-titanium-anodized-color-hexagon-socket-countersunk-head-cap-screws/)

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

**US$0.012 – 0.036**MOQ 1,000 pieces

[![Claw Nut Nut Manufacture Plain Stainless Steel Carbon Steel Claws Tee Nuts](https://img.engineeringhardware.com/Claw-Nut-Nut-Manufacture-Plain-Stainless-Steel-Carbon-Steel-Claws-Tee-Nuts.webp)](https://engineeringhardware.com/product/claw-nut-nut-manufacture-plain-stainless-steel-carbon-steel-claws-tee-nuts/)

Countersunk & Flat-Head Machine Screws

### [Claw Nut Nut Manufacture Plain Stainless Steel Carbon Steel Claws Tee Nuts](https://engineeringhardware.com/product/claw-nut-nut-manufacture-plain-stainless-steel-carbon-steel-claws-tee-nuts/)

Countersunk Head · DIN, ANSI, GB

**US$0.12**MOQ 1,000 pieces

**US$0.012 – 0.12**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%20Ss%20304%20316%20Countersunk%20Hex%20Cap%20Screws%20Stainless%20Steel%20Flat%20Head%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fss-304-316-countersunk-hex-cap-screws-stainless-steel-flat-head%2F)