Recent Products
Brass Precision Parts
Screws and Bolts
Screws and bolts from dipak sales are precision fastening components made to customer drawings, samples and defined thread requirements.
Materials, dimensions, threads, tolerances and surface finishes can be specified for automotive, electrical, industrial and OEM assemblies.
Screws and Bolts for Custom Industrial and OEM Assemblies
Screws and Bolts are fastening components that have to match the thread, mating part, installation space and material requirement of the assembly. dipak sales manufactures precision metal components to customer drawings, samples and defined specifications, supporting custom fastening requirements for electrical, automotive, industrial and OEM applications.
Start With the Fastening Interface
A screw or bolt may look like a standard component, but the usable specification is often more detailed. Thread size, thread length, head geometry, shank diameter and overall length can all affect how the fastener fits the finished assembly.
- Thread type, size and pitch
- Overall length and threaded length
- Head shape and drive feature
- Shank diameter and shoulder details
- Material grade or alloy requirement
- Surface treatment and dimensional tolerances
Materials for Different Fastening Requirements
dipak sales has material expertise covering ETP Copper, Aluminum, Phosphor Bronze, lead-free brass alloys, low-lead brass alloys and copper alloys. For screws and bolts, the exact material should be established from the approved customer drawing or purchasing specification rather than assumed from the product name.
This drawing-led approach is useful when a fastening component is part of an established OEM assembly and the material, thread and finish are already controlled by the customer's engineering requirement.
Common Screw and Bolt Features
| Feature | What it defines |
|---|---|
| Thread | Controls compatibility with the mating nut, tapped hole, stud or threaded component. |
| Head | Provides the specified bearing surface and tool interface. |
| Shank | Controls the unthreaded portion, clearance and assembly fit where applicable. |
| Length | Determines engagement and the position of the fastener in the assembly. |
| Finish | Defines plating, coating or another specified surface treatment. |
Manufacturing According to the Part
Depending on the geometry, production may involve turning, drilling, milling, tapping, precision machining or other suitable operations. Secondary finishing can also be considered where the approved specification calls for plating, coating, buffing, part finishing or another treatment.
The process route is selected from the component design and quantity. A simple turned fastener does not need the same manufacturing sequence as a special bolt with cross-holes, shoulders or additional machined features.
Applications
Custom screws and bolts can be used in automotive components, electrical and electronic equipment, fastening and fixture assemblies, industrial machinery and OEM products. The company also serves telecommunications, agriculture, hydraulic, medical technology, energy and data-center industries.
The final application determines the required material, strength, thread and finish. Those performance requirements should therefore be controlled by the customer's approved specification.
Quality Checks for Threaded Components
dipak sales operates an ISO 9001:2015 certified Quality Management System for the manufacture of precision metal components. Documented inspection resources include digital micrometers, vernier calipers, bore gauges, thread plug gauges, thread ring gauges, height gauges, depth gauges and other measuring equipment.
For screws and bolts, inspection can be focused on thread characteristics, critical diameters, length, head dimensions and other drawing-controlled features. Where specified, hardness, tensile testing or material verification can also be considered through the documented testing arrangements.
What to Share for a Fastener Enquiry
- Customer drawing, CAD model or representative sample
- Thread standard, size and pitch
- Required material grade
- Critical dimensions and tolerances
- Plating or surface finish requirement
- Prototype, batch or recurring quantity
Frequently Asked Questions
Can dipak sales manufacture custom screws and bolts?
Yes. Custom screw and bolt requirements can be reviewed from customer drawings, samples or defined technical specifications, subject to manufacturing feasibility.
Can special threads be manufactured?
Thread requirements can be considered according to the approved drawing or specification, including the specified thread form, size and related dimensions.
Can screws and bolts receive surface finishing?
Yes. Plating, coating, buffing, part finishing and other specified treatments can be considered when they form part of the approved requirement.
Are repeat production requirements supported?
Yes. Once the component definition is approved, the same drawing and inspection requirements can be used as the reference for repeat production.
