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Threaded Rods & Studs › Double-End & Tap-End Studs

Bidirectional Rolled Thread Pressure Vessel Flange Connection Stud Bolt

Updated 2026-11-04 · Markdown version

Model no. HYSLLSS0057

US$0.012 – 0.12 / piece

MOQ 10,000 pieces · Final price confirmed in your quote

Head Style: Headless
Standard: ISO, GS
Grade: A2-70 (SS304), A4-70 (SS316)
Customized: Yes
Material Grade: A2-70 (SS304), A4-70 (SS316) Stainless Steel
Surface Treatment: Polish, Plain, Galvanized, HDG, Nickel Plated
Tolerance Grade: Standard Metric Thread Tolerance
Package Size: 30.00cm * 20.00cm * 20.00cm

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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

Model NO.	HYSLLSS0057
Connection	Double Thread Connection
Head Style	Headless
Standard	ISO, GS
Grade	A2-70 (SS304), A4-70 (SS316)
Customized	Yes
Drawing	Yes
Application	Flange Connection, Pressure Vessel
Process	Cold Forging, CNC Machining, Double-End Thread Cut
Product Type	a-Grade Stainless Steel Headless Stud Bolt
Service	Free Samples, OEM & ODM Supported
Material Grade	A2-70 (SS304), A4-70 (SS316) Stainless Steel
Surface Treatment	Polish, Plain, Galvanized, HDG, Nickel Plated
Key Features	Double Full Thread, Excellent Corrosion Resistance
Tolerance Grade	Standard Metric Thread Tolerance
Quality Control	100% Pre-Shipment Inspection, Mtr, RoHS
Transport Package	Bulk, Small Box, Plastic Box, Carton+Pallet
Specification	M3-M64 Custom Length
Origin	China
HS Code	7318160000
Production Capacity	100ton/Month
Package Size	30.00cm * 20.00cm * 20.00cm
Package Gross Weight	0.500kg
Customization	Available
Material	Stainless Steel
Type	Double End Stud Bolt
Shipping Cost	Contact the supplier about freight and estimated delivery time.
Non-standard parts	15-25days
Category	Double-End & Tap-End Studs

Technical parameters

Item	Detailed Information
Full Product Title	Bidirectional Rolled Thread Pressure Vessel Flange Connection Stud Bolt
Brand & Standard Model	Brand: HYS; Product Type: A-Grade Stainless Steel Headless Double End Stud Bolt; Standard: ISO, GS Industrial Standards
Core Product Introduction	ISO & GS compliant headless double full thread stud bolt, manufactured from A2-70 (304) / A4-70 (316) stainless steel; precision rolled uniform bidirectional threads; multiple anti-corrosion surface treatments including polish, plain, galvanized, HDG hot dip galvanized, nickel plating; specifications M3-M64 with customizable length, specially designed for pressure vessel flange connection and indu
Material & Material Grade	Material: Stainless Steel; Grade: A2-70 (SS304), A4-70 (SS316) Stainless Steel
Mechanical Performance Grade	A2-70, A4-70 high corrosion resistant stainless steel grades
Specification Range	M3-M64, custom adjustable machined length
Connection Mode	Double-End Full Thread Interpenetrating Flange Fastening Connection
Head Shape	Smooth Headless Cylindrical Shaft
Applicable Standards	ISO International Standard, GS Industry Standard
Surface Treatments	Mirror Polished Finish, Raw Plain Finish, Electro Galvanized, Hot Dipped Galvanized (HDG), Nickel Plated
Production Process	Cold Forging Forming + CNC Precision Machining + Double-End Rolled Uniform Thread Processing
Export Packaging	Bulk Pack, Small Plastic Box, Outer Export Carton + Transport Pallets
Origin	China
Customization Support	Fully Customizable; Accept Customer Engineering Drawings
Service Advantages	Free test samples available, full OEM & ODM custom processing supported
Application Scenarios	Pressure Vessel Flange Assembly, Industrial Pipeline Equipment Connection, Chemical Corrosive Environment Fastening, Heavy Machinery Sealed Joints
Core Key Features	Precision bidirectional rolled full threads for tight sealing, excellent long-term acid & alkali corrosion resistance, multi anti-rust surface options, ISO & GS dual standard compliance, ultra-wide size range for heavy pressure equipment
Thread Tolerance Grade	Standard Metric Coarse Thread Tolerance
Quality Control	100% full inspection before shipment, complete MTR material test reports supplied

Description

Bidirectional Rolled Thread Pressure Vessel Flange Connection Stud Bolt is part of our double-end & tap-end studs range (Threaded Rods & Studs).

Key details

Type: Double End Stud Bolt
Standard: ISO, GS
Material: Stainless Steel
Grade: A2-70 (SS304), A4-70 (SS316)
Head Style: Headless
Surface Treatment: Polish, Plain, Galvanized, HDG, Nickel Plated
Connection: Double Thread Connection
Application: Flange Connection, Pressure Vessel

Available configurations include head style, standard, grade, customized and material grade. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 10,000 pieces at US$0.012 – 0.12 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 Bidirectional Rolled Thread Pressure Vessel Flange Connection Stud Bolt?

The listed minimum order is 10,000 pieces, at US$0.012 – 0.12 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 Bidirectional Rolled Thread Pressure Vessel Flange Connection Stud Bolt?

Type: Double End Stud Bolt; Standard: ISO, GS; Material: Stainless Steel; Grade: A2-70 (SS304), A4-70 (SS316); Head Style: Headless; Surface Treatment: Polish, Plain, Galvanized, HDG, Nickel Plated. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include head style, standard, grade, customized and material grade. 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/

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

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US$0.012 – 0.12MOQ 10,000 piecesGet a quote WA