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Fastener Sets & Assemblies › Assortment Kits & Mixed Fastener Sets

Encapsulated Fin Neck Bolt Set 1/2″Unc & M12 Full Range

Updated 2026-11-04 · Markdown version

Model no. tank Bolt

US$0.601,000–99,999 pieces

US$0.36100,000–999,999 pieces

US$0.121,000,000+ 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

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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

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/

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

More about us → · Request a sample or custom quote →

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US$0.12 – 0.60MOQ 1,000 piecesGet a quote WA