Special Fasteners and Custom Fasteners According to Drawing
Drawing-based special fasteners, non-standard fasteners, CNC machined fasteners, special washers, custom sleeves, spacers, pins, bushings, threaded parts and project-specific fastener assemblies for industrial and OEM requirements.
Special Fasteners for Non-Standard Industrial Requirements
Special fasteners are used when standard bolts, nuts, washers, anchors or threaded rods cannot fully meet drawing, assembly, material, tolerance, geometry or project requirements.
WISINE can review non-standard fasteners, drawing-based fasteners, CNC machined fasteners, special washers, pins, sleeves, spacers and custom fastener assemblies according to drawings, samples, photos, confirmed dimensions, material grade, tolerance, finish, quantity and document requirements. Manufacturing feasibility should be reviewed according to drawing, material, tolerance, quantity and process requirements.
Common Inquiry Focus
- Drawing, sample, photo or confirmed dimensions
- Material grade, material condition and application environment
- Thread, geometry, tolerance and surface finish
- Matching parts, assembly requirement and packing method
- Material certificates and inspection documents when required
Special Fastener Product Scope
Special fasteners can be reviewed according to confirmed drawings, samples, specifications or project-specific assembly requirements.
Non-Standard Fasteners
Fasteners with non-standard geometry, size, head type, thread, shank, shoulder or assembly features.
Special Bolts and Nuts
Special bolts, special nuts, shoulder bolts and project-specific threaded fastener designs.
Special Washers
Custom washers, washer plates, tab washers, square washers and non-standard washer geometry.
Custom Sleeves and Spacers
Sleeves, spacers, bushings and distance components according to drawing or confirmed dimensions.
Special Pins
Special pins, shafts, stepped pins and fastening pins according to drawing and material requirement.
Project-Specific Assemblies
Matched bolt, nut, washer, sleeve, spacer and custom fastening kits for project supply coordination.
Drawing-Based Fasteners According to Sample or Confirmed Dimensions
Customers can provide PDF, DWG, DXF, STEP, sample photo, physical sample or confirmed dimensions for quotation review. Manufacturing feasibility should be reviewed according to material, geometry, tolerance, thread, finish, quantity and process requirements.
Final specification should be confirmed before production. Certificate availability and third-party inspection requirements should be confirmed before quotation.
Useful Drawing Details
- 2D drawing or 3D model if available
- Material grade and heat treatment or material condition if specified
- Critical dimensions and tolerance requirements
- Thread type, thread pitch and thread length
- Surface finish, quantity and inspection requirement
CNC Machined Fasteners and Special Fastening Components
CNC machined fastener requirements should be reviewed according to drawing, material, tolerance, finish, quantity and process requirements.
CNC Machined Fasteners
Drawing-based machined fasteners where the geometry is outside a standard fastener catalog item.
Turned Parts
Turned sleeves, spacers, pins, bushings and threaded components according to confirmed dimensions.
Milled Components
Milled fastener components, plates, blocks and special profiles where specified by drawing.
Special Pins
Special pins, stepped pins, grooved pins and fastening pins according to drawing requirements.
Sleeves and Spacers
Custom sleeves, spacers, distance tubes and bushings according to project-specific dimensions.
Shoulder Components
Shoulder bolts, shoulder pins and special shank components when the shoulder geometry is confirmed.
Precision Threaded Parts
Threaded machined parts can be reviewed when thread type, tolerance and inspection details are specified.
Custom Metal Fasteners
Project-specific fastening parts produced according to drawing, sample or confirmed specification.
Project-Specific Small Fastening Components
Special washers, pins, sleeves and spacers can be discussed where specified by project documents, drawings, samples or confirmed dimensions. Final specification should be confirmed before production.
Special Washers
Custom washers, washer plates, tab washers, square washers and special hole or slot details according to drawings.
Special Pins
Stepped pins, grooved pins, fastening pins, locating pins and project-specific pin designs can be reviewed according to drawing.
Sleeves
Custom sleeves, distance tubes, bushings and threaded or non-threaded sleeve components according to confirmed dimensions.
Spacers
Round, square, stepped or project-specific spacers for fastener assemblies and support systems.
Custom Threaded Parts and Project-Specific Fastener Assemblies
Custom fastener assemblies can include custom thread, special thread length, metric / UNC / UNF thread options, special shoulder, special shank, special head, matched bolt / nut / washer sets, pins, sleeves, spacers and project-specific fastening kits.
Thread details, tolerance, material grade, finish, matching parts and packing requirements should be confirmed before quotation.
Assembly Review Details
- Thread type, thread pitch and thread length
- Head, shoulder, shank and end detail
- Matched nut, washer, sleeve or spacer requirement
- Project labeling or kit packing if required
Special Fasteners Page and Custom Parts Conversion Path
This page stays focused on Industrial Fasteners special and non-standard fastener products. Broader drawing-based custom metal parts belong to the Custom Parts module, and drawing-based RFQs should use the Send Drawing for Quote path.
Industrial Special Fasteners
/industrial-fasteners/special-fasteners/ is the product page for non-standard fasteners, drawing-based fasteners, CNC machined fasteners, special washers, pins, sleeves, spacers and custom fastener assemblies.
Custom Parts Hub
/custom-parts/ is the broader hub for drawing-based custom metal parts beyond Industrial Fasteners, including wider OEM and project-specific metal component discussions.
Drawing-Based RFQ
/custom-parts/send-drawing-for-quote/ is the primary conversion path for drawings, samples, material grade, dimensions, finish, quantity and document requirements.
Material Options for Special Fasteners
Material selection should be confirmed according to drawing, application environment, corrosion exposure, mechanical requirements if specified, tolerance, process route and document requirements. Availability is subject to material availability, quantity, processing requirements and document requirements.
| Material Family | Common Grades | Typical Special Fasteners | RFQ Confirmation Notes |
|---|---|---|---|
| Stainless Steel | 304, 304L, 316, 316L, 316Ti, 321, 347, 904L | Special bolts, nuts, washers, sleeves, spacers, pins and custom threaded parts | Confirm grade, drawing, corrosion environment and finish. |
| Duplex / Super Duplex | 2205, 2507, S31803, S32205, S32750, S32760 | Duplex special fasteners and project-specific assemblies | Confirm project specification and certificate requirement before quotation. |
| Nickel Alloys | Hastelloy C276, Hastelloy C22, Inconel 600, Inconel 625, Inconel 718, Incoloy 800H, Incoloy 800HT, Monel 400, Monel K500 | Nickel alloy special fasteners, machined parts, sleeves and pins | Confirm alloy grade, dimensions, quantity and inspection requirements. |
| Alloy Steel | ASTM A193 B7, ASTM A193 B7M, ASTM A320 L7, ASTM A320 L7M and project-specified alloy steel | Special bolts, threaded parts, studs, pins and assemblies | Confirm standard, material condition, coating and document requirement. |
| High Strength / Special Stainless | 17-4PH, 15-5PH, A286, XM-19 and project-specified high strength materials | Special threaded parts, custom fasteners and drawing-based components | Confirm drawing, material condition and process requirement. |
| Other Project-Specified Materials | Aluminum alloy, brass / copper alloy, titanium and project-specified materials according to drawings and application requirements | Custom sleeves, spacers, bushings, pins and project-specific parts | Confirm material grade, application environment and production feasibility. |
Standards, Drawings and RFQ Requirements
ASTM / ASME / DIN / ISO / EN / JIS references, drawing-based specifications and project-specific specifications can be discussed according to order requirements. EN 10204 3.1 / 3.2 material certificates and third-party inspection requirements can be discussed when required. Certificate availability should be confirmed before quotation.
| RFQ Item | Information to Provide |
|---|---|
| Reference Basis | Drawing, sample, photo, confirmed dimensions, standard or project-specific specification. |
| Product Function | Fastening, spacing, sleeving, pinning, threading, supporting, locating or project-specific assembly function. |
| Material Grade | Stainless steel, duplex stainless steel, nickel alloy, alloy steel, aluminum alloy, brass / copper alloy, titanium or project-specified material. |
| Dimensions and Tolerance | Diameter, length, width, height, thickness, hole details, tolerance requirement and critical dimensions. |
| Thread and Finish | Thread type, thread pitch, thread length, surface finish, coating, passivation, polishing or project-specified finish. |
| Documents | Certificate requirement, inspection requirement, third-party inspection requirement, packing requirement and destination country. |
Size, Thread, Tolerance and Surface Finish Options
Size, tolerance and finish should be confirmed according to drawings, standards or confirmed specifications before production.
Dimensions
Diameter, length, width, height, thickness, hole details, shoulder geometry and special profile dimensions should be confirmed.
Thread and Tolerance
Thread type, thread pitch, thread length and tolerance requirement can be reviewed when specified by drawing or project documents.
Surface and Material Condition
Passivation, galvanizing, coating, polishing, heat treatment or material condition can be discussed when specified.
Information to Prepare for a Special Fastener Quotation
Clear RFQ details help confirm feasibility, material, process route, finish, inspection and document requirements before quotation.
| Requirement | Details to Confirm |
|---|---|
| Reference | Drawing, sample, photo, product name, function or confirmed dimensions. |
| Material and Standard | Material grade, standard if any, heat treatment or material condition if required. |
| Dimensions | Diameter, length, width, height, thickness, hole detail, special geometry and critical dimensions. |
| Thread and Tolerance | Thread type, thread pitch, thread length and tolerance requirement if specified. |
| Finish and Matching Parts | Surface finish, coating, passivation, polishing, matching parts requirement and assembly details. |
| Commercial and Documents | Quantity, certificate requirement, inspection requirement, destination country and application environment. |
Special Fasteners FAQ
Can WISINE review custom fasteners according to drawing?
Custom fasteners can be reviewed according to drawings, samples, photos, material grade, dimensions, tolerance, finish and quantity.
What file types are useful for quotation?
PDF, DWG, DXF, STEP, sample photo, physical sample or confirmed dimensions are useful for quotation review.
Can CNC machined fasteners be discussed?
CNC machined fasteners and custom metal parts can be reviewed according to drawing, material, tolerance, finish and quantity.
Can matching parts be supplied as a kit?
Project-specific assemblies and matched fastener kits can be discussed when the parts, quantities and packing requirements are confirmed.
Can certificates be provided?
Material certificates and inspection documents can be discussed when required. Certificate availability should be confirmed before quotation.
What affects production schedule?
Schedule depends on material availability, quantity, processing requirements, surface finish and document requirements.
Send Your Special Fastener Drawing for Quotation Review
Share your drawing, sample photo, product function, material grade, dimensions, thread details, tolerance requirement, surface finish, heat treatment or material condition if required, quantity, matching parts requirement, certificate requirement, inspection requirement, destination country and application environment. WISINE can help review the details and prepare a practical export quotation.