--- title: "Jiaxing QS SA 453 Grade 660 Type a Stud Bolt" description: "Jiaxing QS SA 453 Grade 660 Type a Stud Bolt — Double-End & Tap-End Studs. Grade: 12.9. MOQ 100 sets, US$12.00 – 240.00." url: https://engineeringhardware.com/product/jiaxing-qs-sa-453-grade-660-type-a-stud-bolt/ source: Engineering Hardware & Fasteners --- # Jiaxing QS SA 453 Grade 660 Type a Stud Bolt [![Jiaxing QS SA 453 Grade 660 Type a Stud Bolt](https://img.engineeringhardware.com/Jiaxing-QS-SA-453-Grade-660-Type-a-Stud-Bolt.webp)](https://img.engineeringhardware.com/Jiaxing-QS-SA-453-Grade-660-Type-a-Stud-Bolt.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Threaded Rods & Studs › Double-End & Tap-End Studs](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/jiaxing-qs-sa-453-grade-660-type-a-stud-bolt.md) Model no. **QSZ 24 F 005** US$12.00 – 240.00 / set MOQ 100 sets · Final price confirmed in your quote - **Material:** ASTM A453 Grade 660 Class a - **Head Style:** Round - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST, ISO 261 - **Grade:** 12.9 - **Finish:** Color - **Screw Thread:** Fully - **Heat No:** 9d70097 - **Tensile Strength (MPa):** 895 Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Jiaxing%20QS%20SA%20453%20Grade%20660%20Type%20a%20Stud%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fjiaxing-qs-sa-453-grade-660-type-a-stud-bolt%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 | ASTM A453 Grade 660 Class a | | Type | Stud Head | | Model NO. | QSZ 24 F 005 | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, GB, JIS, BSW, GOST, ISO 261 | | Grade | 12.9 | | Application | Machinery, Chemical Industry, Environmental, Building | | Finish | Color | | Screw Thread | Fully | | Heat No | 9d70097 | | Tensile Strength (MPa) | 895 | | Yield Strength (MPa) | 585 | | Elongation % | 15 | | Reduction % | 18 | | Hardness Hb | 248-341 | | Thread Class | 6g | | Solid Solution | 970 | | Prescription | 720 | | Transport Package | Plywood Cases/Wooden Cases | | Specification | M14*90mm | | Origin | China | | Package Size | 20.00cm * 10.00cm * 10.00cm | | Package Gross Weight | 16.000kg | | DESIGNATION | Full thread bolt | | MATERIAL GRADE | A453 Gr.660 Cl.A | | MATERIAL MARK | 660A SN | | SPECIFIATIONS | ASTM A453/A453M-2017 | | METHOD | +970ºC 720ºC | | MEDIUM | water | | DIMENSIONAL AND SURFACE INSPECTION | OK | | APPEARANCE TREATMENT | Color | | Applications | The bolt is particularly relevant in the petrochemical industry, as well as in heat exchangers, steam generators in nuclear pressurized water reactors, gas turbine engine components, and subsea oil and gas extraction tools, among others. The universal design of the hex nut makes it compatible with various assemblies, significantly increasing the product's versatility. | | Category | [Double-End & Tap-End Studs](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) | ## Technical parameters | | DESIGNATION:Full thread bolt | MATERIAL GRADE:A453 Gr.660 Cl.A | MATERIAL MARK:660A SN | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | STANDARD:ISO 261 | SPECIFIATIONS:ASTM A453/A453M-2017 | HEAT NO:9D70097 | | | | | | | | | | | | | Specs | M20*160 | M20*150 | PO. Item | 20# 33# | | | | | | | | | | | Qty/PCS | 16 | 44 | | | | | | | | | | | | | 2. %CHEMICAL COMPOSITION | | | | | | | | | | | | | | | elements | C | Si | Mn | P | S | Cr | Ni | Mo | Al | Ti | B | V | | | norm values | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 13.5-16.0 | 24-27 | 1.0-1.5 | ≤0.35 | 1.9-2.35 | 0.001-0.010 | 0.10-0.50 | | | Actual | 0.040 | 0.27 | 1.22 | 0.018 | 0.001 | 14.59 | 26.45 | 1.13 | 0.12 | 1.88 | 0.005 | 0.31 | | | 3. MECHANICAL PROPERTY | | | | | | | | | | | | | | INSPECT. ITEM | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % | Reduction % | -196ºCimpact testJ | Hardness HB | | | | | | | | | Spec | ≥895 | ≥585 | ≥15% | ≥18% | - | HB248-341 | | | | | | | | | Actual | 1047 | 617 | 31.5 | 58 | 71.25 73.43 75.21 | 310 | | | | | | | | | | 4. HEAT TREATMENT | | | | | | | | | | | | | | | ºC ºC METHOD: +970ºC 720ºC Solid solution + Prescription Solid solution Prescription MEDIUM: water T T | | | | | | | | | | | | | | | 5. SURFACE & CLASS | | | | | | | | | | | | | | | THREAD CLASS:6g | | | | | | | | | | | | | | | DIMENSIONAL AND SURFACE INSPECTION: OK | | | | | | | | | | | | | | | APPEARANCE TREATMENT: Color | | | | | | | | | | | | | | | Testconclusions | SH/T3404-2013After Inspection , The quality of this product get the SH/T3404-2013 standard of the pattern and the industry standard. | | | | | | | | | | | | | | THE ABOVE MATERIAL IS MANUFACTURED IN ACCORDANCE WITH SPECIFIED SPECIFICATION AND IS SUBJECT TO RANDOM TEST AND INSPECTION.THE CERTIFICATE IS PREPRARED BASED ON THE TEST RESULTS WHICH ARE OBTAINED UNDER THE SUPERVISION BY THE INSPECTOR.THE INSPECTOR IS INDEPENDENT OF THE MANUFACTURER. | | | | | | | | | | | | | ## Description Jiaxing QS SA 453 Grade 660 Type a Stud Bolt is part of our double-end & tap-end studs range (Threaded Rods & Studs). ### Key details - **Type:** Stud Head - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST, ISO 261 - **Material:** ASTM A453 Grade 660 Class a - **Grade:** 12.9 - **Head Style:** Round - **Finish:** Color - **Connection:** Common Bolt - **Application:** Machinery, Chemical Industry, Environmental, Building 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 100 sets at US$12.00 – 240.00 per set. 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 Jiaxing QS SA 453 Grade 660 Type a Stud Bolt? The listed minimum order is 100 sets, at US$12.00 – 240.00 per set. 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 Jiaxing QS SA 453 Grade 660 Type a Stud Bolt? Type: Stud Head; Standard: DIN, ANSI, GB, JIS, BSW, GOST, ISO 261; Material: ASTM A453 Grade 660 Class a; Grade: 12.9; Head Style: Round; Finish: Color. 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 double-end & tap-end studs are available? The Double-End & Tap-End Studs category lists 3,053 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) 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 Double-End & Tap-End Studs →](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) [![Precision Machined Threaded Stud Bolt Smooth Surface No Burr Stud Bolt](https://img.engineeringhardware.com/Precision-Machined-Threaded-Stud-Bolt-Smooth-Surface-No-Burr-Stud-Bolt.webp)](https://engineeringhardware.com/product/precision-machined-threaded-stud-bolt-smooth-surface-no-burr-stud-bolt/) Double-End & Tap-End Studs ### [Precision Machined Threaded Stud Bolt Smooth Surface No Burr Stud Bolt](https://engineeringhardware.com/product/precision-machined-threaded-stud-bolt-smooth-surface-no-burr-stud-bolt/) DIN/ISO/ASTM/ANSI/BS/En · Carbon Steel, Alloy Steel, Stainless Steel,… **US$0.012 – 0.72**MOQ 2,000 pieces [![ASTM A193 B7 Stud Bolt for ASME Flange Pipeline Valve and Refinery Maintenance 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