--- title: "Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range" description: "Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range — Assortment Kits & Mixed Fastener Sets. MOQ 1,000 pieces, US$0.12 – 0.60." url: https://engineeringhardware.com/product/encapsulated-fin-neck-bolt-set-1-2-unc-m12-full-range/ source: Engineering Hardware & Fasteners --- # Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range [![Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range](https://img.engineeringhardware.com/Encapsulated-Fin-Neck-Bolt-Set-1-2-Unc-M12-Full-Range.webp)](https://img.engineeringhardware.com/Encapsulated-Fin-Neck-Bolt-Set-1-2-Unc-M12-Full-Range.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Fastener Sets & Assemblies › Assortment Kits & Mixed Fastener Sets](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/encapsulated-fin-neck-bolt-set-1-2-unc-m12-full-range.md) Model no. **tank Bolt** | **US$0.60**1,000–99,999 pieces | **US$0.36**100,000–999,999 pieces | **US$0.12**1,000,000+ pieces | | --- | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Round - **Standard:** DIN, ANSI, GB, ASTM - **Grade:** 9.8 - **Finish:** Hot Galvanizing - **Package Size:** 25.00cm * 25.00cm * 13.50cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Encapsulated%20Fin%20Neck%20Bolt%20Set%201%2F2%26%238243%3BUnc%20%26amp%3B%20M12%20Full%20Range%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fencapsulated-fin-neck-bolt-set-1-2-unc-m12-full-range%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 | | Type | Round Head | | Model NO. | tank Bolt | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, GB, ASTM | | Grade | 9.8 | | Application | Machinery, Chemical Industry, Environmental, Building | | Finish | Hot Galvanizing | | MOQ | 1000PCS | | Certification | ISO9001 | | Delivery Time | 25 Days | | Durability | Enhanced | | Sample | Free | | Transport Package | 25kg/Carton+Pallet | | Specification | M12-M90, 1/2"-- 3 1/2" | | Origin | Ningbo, Zhejiang | | HS Code | 7318160000 | | Production Capacity | 2500 Tons/Month | | Package Size | 25.00cm * 25.00cm * 13.50cm | | Package Gross Weight | 25.000kg | | Metric | M12 Series | | Imperial | 1/2"UNC Series | | ISO 9001 | 2015 | | Category | [Assortment Kits & Mixed Fastener Sets](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) | ## Technical parameters | Product | Fin Bolt \ Silo Bolt | | --- | --- | | Standard Thread Specifications | Metric: M12 Series; Imperial: 1/2"UNC Series | | Bolt Length (Metric M12) | 30 mm, 35 mm, 40 mm, 50 mm, 60 mm in stock | | Bolt Length (Imperial 1/2"UNC) | 25 mm, 32 mm, 38 mm, 45 mm, 50 mm, 57 mm, 63 mm in stock | | Optional Accessories | 1. Hex Nut (HEX NUT)2. Steel Washer3. Rubber Washer4. Plastic Cap | | Coating Characteristics | Environmentally friendly, heat-resistant, corrosion-resistant thickened coating ensures long-term protection and smooth installation. | | Product application | Silo Bolt is an integral part of enamel assembled tank, which is mainly composed of enamel steel plate, self-locking bolt and sealant, and the main component is enamel assembled steel plate. Enamel assembled tank can provide all kinds of water containers for any sewage treatment project, biogas project and electric power project | | Certification | ISO 9001:2015 | | Manufacturing Process | Forging, CNC Machining, Heat Treatment, Surface Finishing | ## Description Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range is part of our assortment kits & mixed fastener sets range (Fastener Sets & Assemblies). ### Key details - **Type:** Round Head - **Standard:** DIN, ANSI, GB, ASTM - **Material:** Carbon Steel - **Grade:** 9.8 - **Head Style:** Round - **Finish:** Hot Galvanizing - **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 1,000 pieces at US$0.12 – 0.60 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 Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range? The listed minimum order is 1,000 pieces, at US$0.12 – 0.60 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$0.60 for 1,000–99,999 pieces; US$0.36 for 100,000–999,999 pieces; US$0.12 for 1,000,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range? Type: Round Head; Standard: DIN, ANSI, GB, ASTM; Material: Carbon Steel; Grade: 9.8; Head Style: Round; Finish: Hot Galvanizing. 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 assortment kits & mixed fastener sets are available? The Assortment Kits & Mixed Fastener Sets category lists 3,161 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) 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 Assortment Kits & Mixed Fastener Sets →](https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/) [![High Strength Carbon Steel Hex Bolt Set Grade 10.9 for Steel Frame and Industrial Fastening](https://img.engineeringhardware.com/High-Strength-Carbon-Steel-Hex-Bolt-Set-Grade-10-9-for-Steel-Frame-and-Industrial-Fastening.webp)](https://engineeringhardware.com/product/high-strength-carbon-steel-hex-bolt-set-grade-10-9-for-steel-frame-and-industrial/) Assortment Kits & Mixed Fastener Sets ### [High Strength Carbon Steel Hex Bolt Set Grade 10.9 for Steel Frame and Industrial Fastening](https://engineeringhardware.com/product/high-strength-carbon-steel-hex-bolt-set-grade-10-9-for-steel-frame-and-industrial/) Hexagon Head · DIN, ANSI, GB, JIS, GOST **US$0.0048 – 0.012**MOQ 100 pieces [![Premium Polished Stainless Steel 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