Stainless Steel Socket Head Shoulder Screw
Part: Shoulder Screw
Configuration: socket head, internal hex, precision shoulder and threaded end; metric, inch or special machine thread; diameter, pitch, tolerance and engagement are confirmed at RFQ
Material scope: stainless steel; grade such as 304 or 316 must be selected against the service environment
Standard / drawing: applicable DIN, ISO, GB or buyer drawing to be confirmed before quotation
Application review: OEM machinery and equipment assembly — confirm mating-part material, joint load and service environment and installation tool and access
RFQ: Send the drawing or sample, quantity, material grade, finish, inspection documents and delivery destination.
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Product Description
Product Overview
Stainless Steel Socket Head Shoulder Screw is presented as a shoulder screw for OEM machinery and equipment assembly. The purchasing distinction is its socket head, internal hex, precision shoulder and threaded end and the way those features engage the mating parts. The reference photographs support identification; production remains subject to an approved drawing, sample or standard.

Product Photo Gallery
Complete Product View
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Head / Retaining Detail
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Precision Body or Shoulder
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Connection / Assembly Detail
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Multi-Angle Product View
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Product Specifications
| Product type | shoulder screw |
|---|---|
| Visible geometry | cylindrical socket head, internal hex drive, precision smooth shoulder and short threaded end |
| Material | Stainless steel; exact grade to be confirmed |
| Standard / equivalent | Custom or applicable standard to be confirmed from the buyer’s drawing |
| Diameter, length and thread | Produced to approved drawing or sample |
| Surface finish | As specified and confirmed before production |
| Tolerance | Critical dimensions and tolerance class to be stated on the drawing |
| Packaging | Bulk, small box or buyer-specified export packing, subject to quotation |
Selection and RFQ Notes for This Shoulder Screw
Industrial product catalogues commonly separate comparable parts by standard, material/grade, diameter × length, pitch, thread coverage, head/drive and pack quantity. For this page those fields are treated as RFQ inputs, not assumed stock specifications.
- Size callout: State diameter × overall length, pitch, threaded length or grip length, and every non-standard shoulder, collar or bore dimension.
- Interface geometry: Confirm the socket head, internal hex, precision shoulder and threaded end, together with the mating-part dimensions and any installation clearance limit.
- Material condition: Specify stainless steel; grade such as 304 or 316 must be selected against the service environment; do not use the word “stainless” or “high strength” as the only acceptance requirement.
- Installation fit: Review mating-part material, joint load and service environment and installation tool and access for the intended OEM machinery and equipment assembly.
- Inspection: Identify the dimensions and functions that are critical to the shoulder screw, together with gauges, reports, sampling level and packaging protection.
Typical Applications
- bearing assemblies
- pivots and rollers
- guided mechanical joints
Application suitability depends on the final material grade, dimensions, mating parts, load and environment. Please share assembly details for engineering review.
Drawing-Controlled Structure and Key Features
- Smooth shoulder for guided movement
- Internal hex drive
- Defined shoulder-to-thread transition
- Custom tolerances to drawing
These visible features guide the RFQ review, but production dimensions must be taken from an approved drawing, standard reference or verified sample.
Quality Inspection Process
For this geometry, dimensional inspection and an assembly-relevant functional check should be agreed before mass production. Typical checkpoints are shoulder or pin diameter, concentricity and step length, thread engagement, and burr and edge condition. Certificates or special reports are supplied when they are included in the quotation.
- Material and surface condition check
- Critical dimensional and tolerance inspection
- Thread gauge and drive geometry verification
- Final appearance, count and packaging inspection
Optical / Vision Sorting Inspection
For suitable higher-volume orders, optical or vision sorting can be evaluated for measurable and visible characteristics such as overall profile, head presence, length, drive condition and selected surface defects. The approved drawing and agreed functional tests remain the controlling acceptance criteria.
Drawing and Customization Requirements
For Stainless Steel Socket Head Shoulder Screw, send a dimensioned drawing or marked sample showing the standard reference, material/grade, size notation, thread data where applicable, socket head, internal hex, precision shoulder and threaded end, finish and packaging. Also identify mating-part material, joint load and service environment and installation tool and access because these points affect suitability for OEM machinery and equipment assembly. Any unmarked dimension remains subject to technical clarification before tooling or production.
Customization & Order Information
| MOQ | Confirmed according to geometry, material, process and order requirements |
|---|---|
| Sample lead time | Confirmed after drawing, material and tooling review |
| Mass-production lead time | Confirmed according to quantity, process and inspection plan |
| Packaging | Bag, box, carton or customer-specified protective export packaging |
| Optional materials / finishes | Reviewed and confirmed against the application and approved drawing |
| Inspection / compliance | Project-specific requirements confirmed in the quotation |
Frequently Asked Questions
Can Hongyuan manufacture from a physical sample?
Yes. A sample supports identification and reverse review, but a drawing or signed dimensional report should define the final acceptance criteria.
How are MOQ and lead time established?
They are quoted after material availability, forming or machining route, tooling, inspection level, finish, packaging and order quantity have been reviewed.
Which application details should accompany the RFQ?
Describe mating-part material, joint load and service environment and installation tool and access. These details help determine whether the proposed geometry and material suit OEM machinery and equipment assembly.
Which dimensions are needed to quote this shoulder screw?
Provide diameter, overall length, pitch, thread or grip length, head dimensions and every shoulder, collar, bore or point dimension that affects the mating parts.
How should the material grade be specified for OEM machinery and equipment assembly?
State the required grade or alloy, mechanical condition, corrosion exposure and certificate requirement. The current material scope is stainless steel; grade such as 304 or 316 must be selected against the service environment.
Request a Quote
To quote Stainless Steel Socket Head Shoulder Screw, send the target quantity, dimensioned drawing or sample, material/grade, finish, inspection and packaging requirements, and delivery destination. For a shoulder screw used in OEM machinery and equipment assembly, please also identify mating-part material, joint load and service environment and installation tool and access. Hongyuan will confirm manufacturability and commercial terms against the approved specification.
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