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Flat Head Brass Split Pin with Slotted Split Spring Structure, Custom CNC Machined Brass Dowel Pin for Precision Assembly

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Dongguan Situo Hardware Products Technology Co., Ltd

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Flat Head Brass Split Pin with Slotted Split Spring Structure, Custom CNC Machined Brass Dowel Pin for Precision Assembly

Size Tolerance : ±0.05

Application : Machining, Milling, Drilling

Hardness : customized

Model Number : ST-000091

Service : OEM/ODM/Customized/Design

Precision Level : High Precision

Item Name : Pin

Drawing Format : dwg / .igs / .stp / x_t.,JPEG,

MOQ : 1PCS

Delivery Time : Communication

Shape Model : CNC machining parts

Process : Turning/Milling/Grinding/Machining

Certification : ISO9001 & TS16949

Mounting Type : Shaft

Packaging Details : Communication

Rugosity : Ra1.6

Equipment : CNC lathe machine,Auto lathe machine

Logo : customized

Payment Terms : T/T

Material : Copper

Manufacturingprocess : CNC Machining

Precision : Min0.01

Brand Name : SITUO

Corrosionresistance : High

Item : Industrial Precision Components

Place of Origin : Dongguan Guangdong

Seawater Pressure : ≥20 bar

Qc Control : 100% inspection on critical dimension

Price : 5-10 USD per item

Weight : 20g

Finish : Dacromet surface treatment

Supply Ability : 10000PCS per day

Tolerance : ±0.01mm

Keyword : Custom CNC Machining Parts

Color : passivation

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Product Overview

This flat head brass split pin — also widely known as a brass insert pin, brass dowel pin, slotted cotter pin or brass locating pin — is precision CNC machined from premium brass raw material. Featuring a unique slotted split spring structure and flat head design, it is produced through turning, grooving and cutting processes.

The brass split dowel pin delivers stable elastic clamping force, excellent ductility, wear resistance and corrosion resistance. These copper insert pins are commonly used for locating, connecting, fastening and anti-loosening locking in mechanical assemblies. SITUOWUJIN supports full non-standard customization of brass split pins, brass locating dowel pins and slotted brass insert pins based on your drawings or samples to meet diversified assembly demands.

Key Features

Raw Material: High-quality brass — rust and corrosion resistant, with outstanding ductility and stable spring elasticity.
Optimized Structure: Flat head plus slotted split design makes this brass cotter locating pin easy to insert and install, locking firmly in place.
Precision Machining: CNC turning and slotting cutting deliver tight dimensional tolerances and a smooth, burr-free surface.
Anti-Loosening Performance: The split slotted spring pin structure creates consistent elastic clamping, so the brass dowel pin will not detach easily after assembly.
Versatile Usage: Ideal for applications requiring repeated disassembly, positioning and locking.
Flexible Customization: OEM & ODM service available. We custom-make brass locating pins and slotted copper insert pins in different outer diameters, lengths, slot widths and head sizes.

Specifications

MaterialBrass
AliasBrass Split Pin, Brass Insert Pin, Brass Dowel Pin, Slotted Cotter Pin, Brass Locating Pin, Spring Split Pin
ProcessingCNC turning, slotted cutting
Product TypeFlat Head Slotted Brass Split Pin
ToleranceCustomized according to customer requirements
Custom ServiceNon-standard custom hardware machining

Application Scenarios

Our brass split pins, brass insert locating pins and slotted brass dowel pins are widely used for positioning, connection and anti-loosening locking on mechanical equipment, instrument hardware fittings, electronic components, furniture hardware, toy assembly parts, auto spare parts, door and window hardware and other precision machinery assemblies.

Frequently Asked Questions

Q1: Can you customize this brass split pin, brass insert pin and brass dowel pin?

Yes. SITUOWUJIN accepts OEM & ODM customization for slotted cotter pins and brass locating pins based on your drawings or physical samples.

Q2: What is the advantage of this slotted brass split dowel pin?

The split slot provides reliable elastic clamping force. This brass insert locating pin offers a stable locking effect and convenient disassembly.

Q3: Are other material options available for split pins and locating dowel pins?

Brass is our standard material for copper insert pins. Stainless steel and carbon steel split pins and locating dowel pins can also be supplied on request.

Manufacturing Capabilities

We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

Precision Range

Maximum processing outer diameter of 60 mm, with a minimum controlled tolerance of 0.001 mm.

Equipment

Japanese CNC Tsugami and CNC Citizen machines, multi-station cold extrusion forming machines, 500T press machines, casting equipment and various process equipment — enabling effective, best-in-class technical solutions.

Team & Scale

300 employees in total, including 20 technicians, 10 engineers and 15 quality control personnel, supported by over 300 pieces of equipment.

Quality Management

8S management system implemented; ISO9001 and TS16949 automotive certifications passed.

Our customers include Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones and Siegenia.

Our Capacity

Main Product Names	Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts and other fasteners.
Business Type	Factory / Manufacturer
Service	CNC Machining, Turning and Milling, CNC Turning, Cold Heading, Stamping, Assembly Service
Material	1) Aluminum: AL 6061-T6, 6063, 7075-T etc. 2) Stainless steel: 303, 304, 304L, 316L, 316F, 630, 410, 420, 430 etc. 3) Steel: 4140, Q235, Q345B, 20#, 45#, 1215, 12L14, 1144, 1006, 1008, 1010, 1015, 1018, 10B21, 1035, 1065 etc. 4) Alloy steel: 5140, 4135, 4140, 3435, 5120, 415, 435, 440 etc. 5) Titanium: TA1, TA2/GR2, TA4/GR5, TC4, TC18 etc. 6) Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000 (H90), C27000, C51900, C11000, C3604, H62, H65 etc. 7) Copper, bronze, magnesium alloy, Delrin, POM, acrylic, PC etc.
Finish	Sandblasting, anodize color, blackening, zinc/nickel plating, polish, powder coating, passivation PVD, titanium plating, electrogalvanizing, electroplating chromium, electrophoresis, QPQ (Quench-Polish-Quench), electro polishing, chrome plating, knurl, laser etch logo etc.
Drawing Format	STEP, STP, GIS, CAD, PDF, DWG, DXF etc., or samples.
Tolerance	+/-0.01 mm ~ +/-0.05 mm
Surface Roughness	Ra 0.1 ~ 3.2
Inspection	Complete inspection lab with micrometer, optical comparator, caliper vernier, CMM, depth caliper vernier, universal protractor, clock gauge and internal centigrade gauge.

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Flat Head Brass Split Pin with Slotted Split Spring Structure, Custom CNC Machined Brass Dowel Pin for Precision Assembly

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Flat Head Brass Split Pin with Slotted Split Spring Structure, Custom CNC Machined Brass Dowel Pin for Precision Assembly

Flat Head Brass Split Pin with Slotted Split Spring Structure, Custom CNC Machined Brass Dowel Pin for Precision Assembly

Flat Head Brass Split Pin

Slotted Split Brass Dowel Pin

Custom CNC Machined Brass Split Pin

Flat Head Brass Split Pin with Slotted Split Spring Structure, Custom CNC Machined Brass Dowel Pin for Precision Assembly Images