--- title: "ASME B 18.3 Hex Socket Shoulder Screws" description: "ASME B 18.3 Hex Socket Shoulder Screws — Socket Head Cap & Allen Screws. Material: Alloy Steel, Grade: 10.9, 12.9. MOQ 1,000 pieces, US$0.14 – 0.30." url: https://engineeringhardware.com/product/asme-b-18-3-hex-socket-shoulder-screws/ source: Engineering Hardware & Fasteners --- # ASME B 18.3 Hex Socket Shoulder Screws [![ASME B 18.3 Hex Socket Shoulder Screws](https://img.engineeringhardware.com/ASME-B-18-3-Hex-Socket-Shoulder-Screws.webp)](https://img.engineeringhardware.com/ASME-B-18-3-Hex-Socket-Shoulder-Screws.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/asme-b-18-3-hex-socket-shoulder-screws.md) Model no. **ISO7379 Socket Shoulder Screw** | **US$0.30**1,000–4,999 pieces | **US$0.14**5,000+ pieces | | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Alloy Steel - **Head Style:** Hexagonal - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 10.9, 12.9 - **Surface Treatment:** Black - **Diameter from M3-M30, Inch size:** 10# to 1-1/4" Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20ASME%20B%2018.3%20Hex%20Socket%20Shoulder%20Screws%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fasme-b-18-3-hex-socket-shoulder-screws%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 | Alloy Steel | | Type | Round Head | | Model NO. | ISO7379 Socket Shoulder Screw | | Groove | Hexagon | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 10.9, 12.9 | | Type Product | ISO7379 Socket Shoulder Screw | | Keyword | Socket Shoulder Screw | | Surface Treatment | Black | | Application | Machinery,Chemical Industry, Environmental,Buildin | | Certificate | ISO9001: 2015 | | Export Markets | Global | | Type1 | Stainless Steel Screw | | Transport Package | 1. Small Boxes Into Outer Carton 2. Bulk Packaging | | Specification | Shoulder Diameter φ6-φ25, 1/4-1", 1/4-3/4" | | Origin | China | | HS Code | 731815 | | Production Capacity | 1000 Tons Per Month | | Our extensive range of fastener products includes | Drop-in Anchor | | Diameter from M3-M30, Inch size | 10# to 1-1/4" | | ISO9001 | 2008, SGS, ROHS | | Package | Each carton weighs between 25-30KGS, with 36-48 cartons per pallet. | | Produce time | For standard sizes in stock, the production time is 5-7 working days. For non-standard sizes, the production time is 12-18 working days, depending on the quantity. | | Shipping way | We offer various shipping options. For orders under 100KGS, we provide air or express shipping through reliable carriers like FedEx, UPS, and DHL. For orders exceeding 100KGS, we can arrange sea shipping through our trusted agent. If you have your own agent, we can work with them as well. | | Category | [Socket Head Cap & Allen Screws](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) | ## Technical parameters | Material | 1.Stainless Steel: SS304,SS316 2.Alloy Steel | | --- | --- | | Grade | Class 10.9, 12.9 | | Finish | Black | | Thread | UNC,UNF | | Standard | ISO, DIN, ANSI, JIS, BS and Non-standard | | Sample Service | Samples are all in free when you confirm our price is acceptable. | | Certificate | ISO9001,CE, SGS, BV | | Advantage | 1. Competitive price; 2. OEM service available | | Packing | Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand | | Payment terms | FOB, CIF, CFR, L/C, or others. | | Delivery method | by sea, by air or by express service | | Lead Time | 7-15 work days after order confirmed | | Application | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. | | Notes | Special specifications and marks can be made according to customers requirements; | ## Description ASME B 18.3 Hex Socket Shoulder Screws is part of our socket head cap & allen screws range (Screws). ### Key details - **Type:** Round Head - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Alloy Steel - **Grade:** 10.9, 12.9 - **Head Style:** Hexagonal - **Groove:** Hexagon - **Surface Treatment:** Black - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and surface treatment. 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$0.14 – 0.30 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 ASME B 18.3 Hex Socket Shoulder Screws? The listed minimum order is 1,000 pieces, at US$0.14 – 0.30 per piece. 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$0.30 for 1,000–4,999 pieces; US$0.14 for 5,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of ASME B 18.3 Hex Socket Shoulder Screws? Type: Round Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Alloy Steel; Grade: 10.9, 12.9; Head Style: Hexagonal; 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 surface treatment. 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 socket head cap & allen screws are available? The Socket Head Cap & Allen Screws category lists 2,042 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-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 Socket Head Cap & Allen Screws →](https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/) [![SS304 SS316 Hexagon Socket Flanged Button Head Socket Cap Screw](https://img.engineeringhardware.com/SS304-SS316-Hexagon-Socket-Flanged-Button-Head-Socket-Cap-Screw.webp)](https://engineeringhardware.com/product/ss304-ss316-hexagon-socket-flanged-button-head-socket-cap-screw/) Socket Head Cap & Allen Screws ### [SS304 SS316 Hexagon Socket Flanged Button Head Socket Cap Screw](https://engineeringhardware.com/product/ss304-ss316-hexagon-socket-flanged-button-head-socket-cap-screw/) All Kinds · DIN, GB, ANSI, BSW, JIS, GOST, Non-Standard Custom **US$0.25 – 0.34**MOQ 1,000 pieces [![ISO7380-2 Stainless Steel Button Round Hex Hexagon Socket Head with Washer Machine 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