--- title: "Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings" description: "Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings — U-Bolts & J-Bolts. MOQ 10 pieces, US$0.60 – 57.60." url: https://engineeringhardware.com/product/factory-supply-ul-fm-grooved-threaded-u-bolts-grooved-pipe-fittings/ source: Engineering Hardware & Fasteners --- # Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings [![Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings](https://img.engineeringhardware.com/Factory-Supply-UL-FM-Grooved-Threaded-U-Bolts-Grooved-Pipe-Fittings.webp)](https://img.engineeringhardware.com/Factory-Supply-UL-FM-Grooved-Threaded-U-Bolts-Grooved-Pipe-Fittings.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/factory-supply-ul-fm-grooved-threaded-u-bolts-grooved-pipe-fittings.md) Model no. **HQDG** US$0.60 – 57.60 / piece MOQ 10 pieces · Final price confirmed in your quote - **Material:** Ductile Iron - **Head Code:** Round - **Finish:** Paint, Epoxy, Galvanization - **Standard:** ASTM - **Thread:** NPT, BSPT, Bsp - **Color:** Red-Ral3000 / Orange/ Blue/ White - **Flange Standard:** Pn / Class Series - **Size:** 1"-16" Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Factory%20Supply%20UL%2FFM%20Grooved%2FThreaded%20U-Bolts%20Grooved%20Pipe%20Fittings%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Ffactory-supply-ul-fm-grooved-threaded-u-bolts-grooved-pipe-fittings%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 | | --- | --- | | After-sales Service | Yes | | Warranty | 1year | | Model NO. | HQDG | | Type | Equal | | Connection | Grooved and Threaded | | Material | Ductile Iron | | Shape | Equal Tee | | Lateral | 90°Tee | | Head Code | Round | | Wall Thickness | SCH40 | | Finish | Paint, Epoxy, Galvanization | | Technics | Casting | | Pressure Rating | 300psi - 750psi | | Standard | ASTM | | Certification | UL,FM,CE | | Thread | NPT, BSPT, Bsp | | Pressure | 300psi - 750psi | | Gasket | EPDM | | Color | Red-Ral3000 / Orange/ Blue/ White | | Flange Standard | Pn / Class Series | | Bolt and Nut | ISO 898-1class 8.8 | | Connect Type | Grooved-Thread End & Grooved End | | OEM | Accept | | Sample | Available | | Delivery Time | 30days | | MOQ | According to Customer's Requirement | | Quality | High Quality | | Payment | T/T,L/C | | Application | Fire Fighting/Water/Oil /Gas | | Transport Package | Case and Pallets | | Specification | 1"~16" | | Origin | China | | HS Code | 73071100 | | Production Capacity | 2000tons/Month | | Certificates | FM & UL & CE | | Pressure rate | 1.6MPA &2.5MPA or 300PSI - 750PSI | | Size | 1"-16" | | Packaging | Wooden cases or pallets or as per customers'requirement | | Applications range | 1) Automatic sprinkler system for fire protection on commercial, civil and municipal constructions like water supplying, gas supplying, heat supplying etc | | Category | [U-Bolts & J-Bolts](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/) | ## Technical parameters | Type: | Grooved Elbow, tee, cross, reducer, cap, grooved rigid/flexible coupling, mechanical tee, mechanical cross, flange adaptor .. | | --- | --- | | Material: | Ductile Iron, ASTM A536, Grade 65-45 | | Certificates: | FM & UL & CE | | Pressure rate: | 1.6MPA &2.5MPA or 300PSI - 750PSI | | Connect type: | Grooved-thread end & grooved end | | Size: | 1"-16" | | Finish: | Paint, Epoxy or Galvanization | | Packaging: | Wooden cases or pallets or as per customers'requirement | | Delivery Time: | 30 days after order conformed | | Applications range: | 1) Automatic sprinkler system for fire protection on commercial, civil and municipal constructions like water supplying, gas supplying, heat supplying etc 2) Industrial pipeline system on shipping, mine, oil field, textile, powder plant etc 3) Pipeline system on subway station, railway station, airport, seaport, bridge et | ## Description Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings is part of our u-bolts & j-bolts range (Bolts). ### Key details - **Type:** Equal - **Standard:** ASTM - **Material:** Ductile Iron - **Size:** 1"-16" - **Thread:** NPT, BSPT, Bsp - **Finish:** Paint, Epoxy, Galvanization - **Connection:** Grooved and Threaded - **Application:** Fire Fighting/Water/Oil /Gas Available configurations include material, head code, finish, standard and thread. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10 pieces at US$0.60 – 57.60 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 Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings? The listed minimum order is 10 pieces, at US$0.60 – 57.60 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 Factory Supply UL/FM Grooved/Threaded U-Bolts Grooved Pipe Fittings? Type: Equal; Standard: ASTM; Material: Ductile Iron; Size: 1"-16"; Thread: NPT, BSPT, Bsp; Finish: Paint, Epoxy, Galvanization. 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 code, finish, standard and thread. 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/) ## Request a quote for this product ## Related products [All U-Bolts & J-Bolts →](https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-bolts/) [![Heavy Duty Grade 6.8 8.8 10.9 DIN3570 Carbon Steel Galvanzied Zinc Plated Black Square U Bolt](https://img.engineeringhardware.com/Heavy-Duty-Grade-6-8-8-8-10-9-DIN3570-Carbon-Steel-Galvanzied-Zinc-Plated-Black-Square-U-Bolt.webp)](https://engineeringhardware.com/product/heavy-duty-grade-6-8-8-8-10-9-din3570-carbon-steel-galvanzied-zinc-plated-black/) U-Bolts & J-Bolts ### [Heavy Duty Grade 6.8 8.8 10.9 DIN3570 Carbon Steel Galvanzied Zinc Plated Black Square U Bolt](https://engineeringhardware.com/product/heavy-duty-grade-6-8-8-8-10-9-din3570-carbon-steel-galvanzied-zinc-plated-black/) U Bolt · DIN, ANSI, GB, JIS **US$0.0072 – 0.012**MOQ 1 piece [![Gread 12.9 Truck Fastener Auto Parts U Bolt with Nut Zinc Galvanized Autoparts 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