The mixed grub screws have uniform force, no offset, not easy to slip. With the uniform pitch, no sharp edges, obvious screw thread, no residual burrs, the set screw threads will be able to get a good grip.
eBay
Slotted round large flat head screws select vriations size.
eBay
T-Bolt 304 Stainless Steel A2.
eBay
Brand New M8 M10 M12 Solid Brass Phillips Flat Head Screws Meterial: Solid Brass Threaded : M8 x 1.25(Pitch) , M10 x 1.5(Pitch) , M12 x 1.75(Pitch) , Length: 12mm to 60mm You can select the size "Buy it now". If you need other sizes,please check out our store or contact us. There are a variety of sizes available but they are not all listed.
eBay
Thread：M8.0 x 1.00 LH. Type:Chuck Screw. 1 X Chuck Screw. 2703-20 Fuel Drill-Driver. 2803-20 Fuel Drill-Driver. Size:as picture. FIt for ：. Part Number 05-88-0019.
eBay
Size : M2.0 to M8 full coverage (M2/M2.5/M3/M4/M5/M6/M8 ). Material :Nylon. Automotive parts : designed to withstand high temperatures and earthquakes, compatible with engine components, interior fixtures, and onboard electronic devices.
eBay
Jis Cap Screw M8-1.25 X 50Mm Zinc, Pack Size: 25
eBay
● Standard: GB /T 70.3 ( ISO 10642 ) ( DIN 7991 ). Grade 12.9 Steel Hex Socket Allen Socket Countersunk Screws Bolts Flat Head Machine Screws, ISO 10642. ● Thread Size: M3, M4, M5, M6, M8, M10. ● Coarse Thread.
eBay