Countersink: 3/8" Head Dia, 60 &deg MPN:18015

Steel T-slot bolts are the perfect choice when needing to hold together two pieces of equipment with extra tightness required, offering an excellent grip even under heavy loads due to their strong build design made from resilient steel material capable of sustaining high amounts of stress making them an ideal tool for industries including construction or automotive. The M20 size provides durable threading suitable for different materials such as metal or plastic sheets, while the 85mm thread length ensures the bolt sinks deeply enough into its hole giving stability where tension might exist between two surfaces reducing movement in those points of contact. Additionally, a 20mm slot width makes it easy to manipulate by nuts and bolts without exerting much effort or causing damages on nearby parts during assembly ensuring precise work gets carried out accurately the first time around regardless the task being completed with utmost satisfaction. In the black finish variant available here comes complete in uncoated form allowing better visualization of its surface irregularities such as screw markings helping quickly distinguish between various sizes at a glance, thus contributing towards improved efficiency within any fastening system setup providing users convenience like no other option out there, making them irresistible to anyone requiring reliable solutions!