Product Overview
Custom steel spacers are made to hold a defined gap, offset or mounting distance in an assembly. Their fit depends on details such as outside diameter, body length, bore, thread and end geometry. Where a standard part does not match the assembly, a controlled drawing or approved sample gives suppliers a clear basis for quotation.
A related long countersunk screw uses an M5 x 90 mm specification and a 55 mm rolled thread. Because these are separate part types, each needs its own drawing callouts, material requirement and inspection criteria.
Order Specifications
| Steel Spacer 1 | Order-label callout: Ø7 x 11.2 x M4 x 6; material marked 10B21* |
|---|---|
| Steel Spacer 2 | Order-label callout: Ø7 x 12.3 x M4 x 8; material marked 10B21* |
| Countersunk Screw | M5 x 90 mm; 55 mm rolled thread length; head drive, angle, pitch and material to drawing |
*The spacer callouts are transcribed from compact package labels. Confirm what each dimension denotes, including the M4 feature and engagement depth, against the approved drawing before repeat production.
Where Spacers and Countersunk Screws Are Used
A spacer is useful wherever two parts need a consistent separation or mounting offset. Typical assemblies include equipment panels, brackets, small machinery, instrument housings and fixtures. A countersunk screw can sit flush when its head angle matches the prepared recess in the mating component.
Selection should follow the joint design. The correct spacer length, bore or thread must match the fastener and surrounding components; the countersunk head must also match the recess rather than being chosen by appearance alone.
Details to Confirm Before Ordering
- Outside diameter, body length, bore and thread form for each spacer
- Thread size, pitch and engagement depth where the spacer is threaded
- M5 thread pitch, screw length datum and 55 mm threaded-section requirement
- Countersunk angle, head dimensions and drive recess for the screw
- Steel grade, mechanical requirement and surface finish for each item
- Critical tolerances, inspection method, quantity and packing specification
MAVORIX Sourcing Support
MAVORIX is a China-side sourcing and supplier coordination partner. We can clarify the RFQ, compare supplier quotations against the same drawing revision, follow sample approval and coordinate agreed checks before shipment. The manufacturing route and acceptance limits depend on the part drawing and supplier review.
For broader cold-headed screw requirements, see our custom cold-headed screws and fasteners page.
This product range was also included in a documented steel spacer and countersunk screw shipment to Serbia.