... drawing or sample.3. Precision: +/-0.01mm4. Processing: turning, milling, drilling,casting,stamping etc.5. Equipment: CNC lathe, automatic lathe, hand ... lathe, thread rolling machine, tapping drilling machine etc.6. Surface Treatment: Plating, anodizing, black oxide etc ... -26385090 TM: changzedianqi Stainless Steel Self-Clinching Studs, Flush-Head Self-Clinching Studs