This is a replacement pair of trailer disc brake caliper slide pin guide bolts that fit Kodiak trailer disc brake calipers. The Manufacturer's part number DBC-MHGB. These sliders pins are 100% Stainless Steel and will never rust. They come with thread locker pre-applied. The slider pins use either a 5/16 inch Allen wrench or a ½ inch socket. The thread size is M11 x 1.5. These slider pins will fit Kodiak's disc brake sets 3,500lb through 7,200lb (Size 225 or 250 caliper). This is the mounting bolt that bolts your Kodiak Brake Caliper to your Kodiak Caliper Bracket. Because you will need 2 pins per caliper slide pins per caliper, we sell them as a pair to make it easier.