Item: 304 Stainless Steel Thumb Screws Grid Knurled Flat Aluminum Head M3 M4 M5 M6 M8
 
Material: Thread part is 304 Stainless Steel, Head is Aluminum
 
Head style: Flat Head

Size: M3 M4 M5 M6 M8 available for choose
 
M3: Head Dia.10mm, Head thick 7mm
M4: Head Dia.10mm, Head thick 7mm
M5: Head Dia.14mm, Head thick 8mm
M6: Head Dia.14mm, Head thick 8mm
M8: Head Dia.16mm, Head thick 8mm