--- title: "Metric Square U Bolt with Full Thread for Construction Fastening" description: "Metric Square U Bolt with Full Thread for Construction Fastening — U-Bolts & J-Bolts. MOQ 1,000 pieces, US$0.012 – 0.36." url: https://engineeringhardware.com/product/metric-square-u-bolt-with-full-thread-for-construction-fastening/ source: Engineering Hardware & Fasteners --- # Metric Square U Bolt with Full Thread for Construction Fastening [![Metric Square U Bolt with Full Thread for Construction Fastening](https://img.engineeringhardware.com/Metric-Square-U-Bolt-with-Full-Thread-for-Construction-Fastening.webp)](https://img.engineeringhardware.com/Metric-Square-U-Bolt-with-Full-Thread-for-Construction-Fastening.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Bolts › U-Bolts & J-Bolts](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/metric-square-u-bolt-with-full-thread-for-construction-fastening.md) Model no. **U bolt** | **US$0.36**1,000–2,999 pieces | **US$0.26**3,000–9,999 pieces | **US$0.12**10,000–49,999 pieces | **US$0.012**50,000+ pieces | | --- | --- | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel, Alloy Steel, Stainless Steel - **Head Style:** Round - **Standard:** DIN, ANSI, GB, JIS - **Grade:** 8.8/10.9/12.9 etc - **Finish:** Plain, Zinc Plated, Dacromet, H.D.G - **Thread:** Unc Unf Metric - **Package Size:** 30.00cm * 20.00cm * 14.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Metric%20Square%20U%20Bolt%20with%20Full%20Thread%20for%20Construction%20Fastening%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fmetric-square-u-bolt-with-full-thread-for-construction-fastening%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, Alloy Steel, Stainless Steel | | Type | Round Head | | Model NO. | U bolt | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, GB, JIS | | Grade | 8.8/10.9/12.9 etc | | Application | Machinery, Chemical Industry, Environmental, Building | | Finish | Plain, Zinc Plated, Dacromet, H.D.G | | Certificate | ISO9001 | | Thread | Unc Unf Metric | | MOQ | 1000PCS | | Delivery Time | 10-15 Days | | Quality Control | 100% Inspection | | Experience | for 20 Years | | Manufacture Processing | Cold Forging/ Hot Forging | | Delivery Method | by Sea, by Air or by Express Service | | Drawings | Accept | | Sample | Sample Avaliable | | Transport Package | Bulk,Carton,Bag,Small Packing,Small Box,Poly Bag | | Specification | 1/4"-1", M6-M30 | | Origin | China | | HS Code | 7318159001 | | Production Capacity | 10000000PCS/Month | | Package Size | 30.00cm * 20.00cm * 14.00cm | | Package Gross Weight | 25.000kg | | Lead Time | 10 days (1 - 1000 Pieces) To be negotiated ( > 1000 Pieces) | | Category | [U-Bolts & J-Bolts](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/) | ## Technical parameters | Material | 1.StainlessSteel:SS201,SS303,SS304,SS316,SS410,SS4202.Steel:C45(K1045), C46(K1046),C203.Carbon Steel: 1010,1035,1045 | | --- | --- | | Grade | SAE J429 Gr.2, 5,8; ASTM A307Gr.A,A193 B7,B8,B8M,A194 2H, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. | | Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc. | | Thread | UNC,UNF,UEF,UN,UNS | | Standard | ISO, DIN, ANSI, JIS, BS and Non-standard | | Sample Service | Samples are all in free. | | Certificate | ISO9001,CE, SGS, BV | | 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 | | Application | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. | ## Description Metric Square U Bolt with Full Thread for Construction Fastening is part of our u-bolts & j-bolts range (Bolts). ### Key details - **Type:** Round Head - **Standard:** DIN, ANSI, GB, JIS - **Material:** Carbon Steel, Alloy Steel, Stainless Steel - **Grade:** 8.8/10.9/12.9 etc - **Thread:** Unc Unf Metric - **Head Style:** Round - **Finish:** Plain, Zinc Plated, Dacromet, H.D.G - **Connection:** Common Bolt 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 1,000 pieces at US$0.012 – 0.36 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 Metric Square U Bolt with Full Thread for Construction Fastening? The listed minimum order is 1,000 pieces, at US$0.012 – 0.36 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$0.36 for 1,000–2,999 pieces; US$0.26 for 3,000–9,999 pieces; US$0.12 for 10,000–49,999 pieces; US$0.012 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Metric Square U Bolt with Full Thread for Construction Fastening? Type: Round Head; Standard: DIN, ANSI, GB, JIS; Material: Carbon Steel, Alloy Steel, Stainless Steel; Grade: 8.8/10.9/12.9 etc; Thread: Unc Unf Metric; Head Style: Round. 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 u-bolts & j-bolts are available? The U-Bolts & J-Bolts category lists 2,391 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/) 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/) ## 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