Dual Protection for Dusty Environments

Vent Screw with Dust Cap products combine venting functions with dust protection for demanding environments. These screws are suitable for construction machinery, agricultural equipment, and other applications exposed to dust and contaminants. Our products support thread sizes from M2 to M18, with overall lengths ranging from 4mm to 45mm. These components provide reliable pressure venting while preventing dust and particle contamination in harsh operating conditions.

Precise Outer Diameter for Dust Cap Fit

Outer diameter accuracy is critical for achieving a secure dust cap fit on vent screws. We guarantee outer diameter tolerance within ±0.005mm. For larger specifications, we achieve surface roughness of Ra1.6μm. Accurate outer diameter control ensures stable dust cap assembly. This effectively prevents dust and contaminants from entering the vent passage and reduces the risk of vent blockage during operation.

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Extensive Production Experience

Our company has accumulated extensive experience in manufacturing precision vent components. Our Vent Screw with Dust Cap production uses CNC lathes and Swiss-type automatic lathes for efficient small screw machining. Our quality management system covers the entire production process from raw material receiving to finished product shipment. Incoming quality control includes raw material inspection and verification. In-process quality control performs regular production checks. Final quality control completes comprehensive inspections before shipment. Our entire team follows the "Three No" quality principle to prevent defective products from moving to the next process.

Clear and Flexible Commercial Terms

Our commercial terms are designed to provide flexible cooperation options for global customers. First-time customers usually pay 70% as an advance payment and complete the remaining 30% balance before shipment. Subsequent orders can be adjusted to 50% prepayment and 50% balance based on cooperation history. Vent Screw with Dust Cap products support EXW, FOB, and DDP trade terms. Payment options include US dollars, Euros, British pounds, and Chinese yuan. Our packaging uses environmentally friendly materials that comply with local regulations. We complete critical dimension inspections before packaging and shipment.

Technical Specifications

Parameter	Minimum Specification	Maximum Specification
Thread Specification	M2	M18
Overall Length	4 mm	45 mm
Outer Diameter Tolerance	±0.005 mm	-
Surface Roughness (Ra)	-	1.6 μm