Features Gallery Product Description Chat Now

Features

Specifications

Type: Stainless Steel Threaded Screw

Standard Number: GB6178

Material: 304 316 Stainless Steel

Surface Treatment: Zinc Plated

Strength Grade: Grade 8.8

Specifications: Customizable

Highlight:

304 Stainless Steel Threaded Screw

316 Stainless Steel Threaded Screw

Custom Length Double Ended Threaded Screw

Basic Infomation

Place of Origin: CHINA

Brand Name: Kesle

Payment & Shipping Terms

Delivery Time: 5-8 work days

Payment Terms: T/T,Western Union,MoneyGram,PayPal

Gallery

304 316 Stainless Steel Threaded Screw Custom Length Double Ended Threaded Screw NPT BSPS High Pressure

Product Description

304 316 Stainless Steel Threaded Screw Custom Length Double Ended Threaded Screw NPT BSPS High Pressure

Product Overview

304 316 Stainless Steel Double Ended Threaded Pipe NPT BSPS High-Pressure Custom Length

Core Structure and Technical Parameters

Basic Design

Bidirectional Thread Structure: Both ends feature complete external threads (internal threads available on custom models) with a smooth tubular main body, forming a full-bore design ideal for fluid transmission or mechanical connections
Thread Standards:
- British Threads: BSPT (tapered pipe threads), BSPP (parallel threads) compliant with ISO 7/1 standards, offering excellent sealing performance for high-pressure applications
- American Standard Threads: NPT (tapered pipe threads) compliant with ASME B1.20.1, compatible with North American pipeline systems
- Metric Threads: M6-M100 with pitches of 1-6mm, supporting customization of special thread forms including trapezoidal threads for non-standard requirements

Materials and Performance

Main Materials:
- 304 Stainless Steel: Resistant to acid and alkali corrosion with salt spray test results ≥1000 hours, suitable for food, pharmaceutical, and chemical equipment
- Carbon Steel (Q235B): Tensile strength ≥375MPa with galvanized (8-12μm) or nickel-plated (10-20μm) surface treatment; neutral salt spray test shows no rust for 24 hours
- Copper Alloy (H62): Excellent thermal conductivity, ideal for refrigeration systems or weak current connections
Pressure Resistance Rating:
- Stainless steel: Regular models withstand pressure ≤16MPa; thickened models reach 40MPa (e.g., DN25 stainless steel threaded pipes)
- Carbon steel: Standard models withstand pressure ≤10MPa; high-pressure models (wall thickness ≥6mm) reach 25MPa

Size Specifications

Diameter Range: DN6 (1/8") to DN100 (4"), covering full range from 1/8-inch to 4-inch pipes
Length Range: Regular in-stock lengths 30-300mm; custom lengths up to 2000mm supported (e.g., DN15*1000mm stainless steel threaded pipes)
Precision Grade:
- Ordinary grade: Thread pitch diameter tolerance ±0.05mm, suitable for general connections
- Precision grade: Grinding-level pitch diameter tolerance ±0.01mm, suitable for high-precision equipment (e.g., semiconductor production lines)

Core Advantages and Application Scenarios

Performance Advantages

Dual Sealing Design:
- Tapered threads combined with anaerobic adhesives (e.g., MXBON thread sealant) provide "mechanical engagement + chemical sealing" dual guarantee with leakage rate ≤0.01mL/min
- Some models feature built-in O-rings (fluororubber or silicone) with pressure resistance ≥25MPa, suitable for dynamic vibration environments
Fatigue Resistance Characteristics:
- Carbon steel materials undergo quenching and tempering (hardness HRC28-32), capable of withstanding over 100,000 alternating loads (e.g., hydraulic systems)
- Stainless steel materials undergo solution treatment with tensile strength ≥520MPa, suitable for high-temperature applications (-200℃ to +400℃)

Typical Applications

Fluid Transmission Systems:
- Chemical pipelines: 304 stainless steel threaded pipes connect reaction kettles and valves, resistant to strong acids and alkalis
- Refrigeration equipment: Copper alloy threaded pipes connect compressors and condensers, ensuring no refrigerant leakage
- Fire protection systems: Carbon steel galvanized threaded pipes combined with grooved joints for quick sprinkler network assembly
Mechanical Fastening Fields:
- Automobile manufacturing: Double-ended threaded pipes fix engine blocks and brackets with torque range of 80-350N*m
- Construction machinery: M30*300mm carbon steel threaded pipes connect tower crane standard sections with tensile load ≥800kN
Special Scenario Adaptation:
- Medical equipment: 316L stainless steel threaded pipes connect CT machine slip rings with surface roughness Ra≤0.8μm
- Aerospace: Titanium alloy threaded pipes (TC4) used in aircraft hydraulic pipelines, featuring lightweight construction and extreme temperature resistance

Tag:

Contact Person :	orlenda li
Tel :	+8613713334285

304 316 Stainless Steel Threaded Screw Custom Length Double Ended Threaded Screw NPT BSPS High Pressure

304 Stainless Steel Threaded Screw

316 Stainless Steel Threaded Screw

Custom Length Double Ended Threaded Screw

Steel Threaded Tube

Hollow Threaded Tube

Hollow Threaded Screw

Galvanized Hollow Lead Screw High Strength Hollow Threaded Rod Grade 4.8

Hexagonal Male Thread Adapter Good Toughness High Strength Nuts

Grade 4.8 Hollow Lead Screw External Threaded Hollow Rod For Construction Electronic

Grade 8.8 Wing Nut Fastener Galvanized Steel Wing Nut For Fastening Needs

Zinc Alloy Wing Nuts And Bolts GB62 Standard Wing Nut Screw For Fastening Needs

2mm Hollow Lead Screw Metric Hollow Threaded Screw Customizable For Industrial / Marine Environments

High Strength Internal Thread Tube Grade 8.8 Hollow Threaded Tube 16mm For Machinery

Carbon Steel / Stainless Steel Threaded Tube 6M 8M 10M Custom Threaded Pipe For Mechanical Fastening