M6 Socket Grub Screws Flat End Point Allen Key Set Screw BZP DIN 913. Socket Set Screws Also Known as a Grub Screws. High Tensile Steel Grade 14.9. If you are looking for other quantities than here, they are available in individual sizes in our shop. Thread Pitch - 1 mm.Allen Key Size - 3 mm. Courier company (UPS, Parcelforce, UKMail) etc. Vision Store is a family owned business. This item is in the category "Business, Office & Industrial\Fasteners & Hardware\Other Fasteners & Hardware". The seller is "visionstore1" and is located in this country: GB. This item can be shipped to United Kingdom.