Single-End Hex Standoff

Single-End Hex Standoffs, also known as single-bore male-female hex spacers, are professional threaded isolation fasteners dedicated to electronic equipment gap support and fixed mounting. Featuring a standard hexagonal outer profile for easy tool locking and torque adjustment, this spacer adopts a classic single-end threaded structure: one end is external male thread for fixed locking installation, and the interior is fully through female thread for matching screw assembly. It accurately controls the assembly gap between PCBs, circuit boards, instrument panels and equipment shells, realizing stable isolation, support and fastening integration. Processed from high-rigidity metal materials, it features precise thread tolerance, strong anti-vibration performance and excellent corrosion resistance. It is the standard matching fastener for precision assembly of electronic cabinets, intelligent instruments, network chassis and industrial control equipment.

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Product Description

Product Parameter

Parameter Item	Detailed Specification
Product Name	Single-End Hex Standoff, Male-Female Hex Isolation Spacer, Single-Bore Hex Threaded Spacer, PCB Hex Mounting Pillar
Executive Standard	General metric fastener specification, supports custom drawing production
Available Material	304 Stainless Steel, 316 Stainless Steel, Nickel-plated Carbon Steel
Thread Specification	M2, M2.5, M3, M4, M5, M6, M8 metric thread
Effective Length	6mm-100mm, non-standard length customizable
Structural Feature	Hex outer body, one-end male thread, single-through internal female threaded hole
Surface Treatment	Stainless steel natural polishing, nickel plating, zinc plating
Core Performance	Accurate spacing dimension, easy torque tightening, high structural rigidity, anti-vibration, corrosion resistance
Matching Tools	Open-end wrench, socket spanner
Application Scenarios	PCB mounting, electrical cabinet, instrument housing, network chassis, industrial control box, electronic equipment assembly
Custom Service	Custom hex width, male-thread length, inner-thread depth, special surface finish, laser marking service

Material & Raw-Material Inspection

Solid metal bars are strictly inspected upon incoming receipt. Chemical composition verification and hardness sampling test are carried out for each batch. Surface inspection eliminates raw stock with cracks, scratches and inclusions. Material test certificates are retained for batch traceability. Impure raw materials are rejected to prevent thread galling, dimension deviation and insufficient mechanical strength during machining.

Single End Hex Standoff

Quality Control & Production Flow

Production workflow: Solid bar cutting → hex shaping → male thread rolling → internal hole tapping → deburring → surface finishing → thread gauge inspection → dimension measurement → visual appearance inspection → packing.

Go-no-go thread gauges check both external and internal threads 100-percent-sampled. Plated carbon-steel versions undergo periodic salt-spray sampling test. Parts with burrs, incomplete threads or out-of-tolerance dimensions will be eliminated before delivery.

Failure Avoidance & Common Misuse Analysis

Do not apply excessive torque during installation, otherwise thread stripping or hex-body deformation may occur. Match with corresponding metric-size mating screws; mixing coarse-thread and fine-thread accessories will cause assembly failure. For high-salt-spray coastal environments, select 316 stainless-steel grade instead of carbon-steel plated variants. Avoid using for heavy-load structural bearing scenarios; this product is designed for spacing assembly of electronic equipment rather than heavy-duty load-bearing connection.

Order & Customization Description

Standard sizes are kept in stock for fast delivery. Non-standard length, special thread depth and special hex dimension OEM customization are supported. Material test reports and anti-corrosion test reports can be supplied upon request. Packaging options include inner plastic bags, export cartons and pallet packing for bulk orders. Sample supply is available for customer pre-project verification.

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