... 0.32mm dia 4.for insect mount Wholesale Metal Brass Head Stainless Steel Insect Mounting Pin #1 ... mint condition, stainless steel wire with brass metal head, easy for holding and rustproof, lead free; ... Construction: stainless steel pin wire with brass metal head --- high quality2. Insect pin length: 40mm 3. ... help just contact me freely. Wholesale Metal Brass Head Stainless Steel Insect Mounting Pin #1