We supplied these custom low head socket cap screws in alloy steel material with black oxide finish. Two different lengths were required by our customer - 28MM and 33MM under the head. We used COTS version of this DIN7984 socket cap screw at 35MM as the base part, then cutting and chamfering the parts to the appropriate lengths. The last step was the black oxide process - we mixed both sizes together to minimize the per piece cost to our customer. Since we used a standard off the shelf part to create the modified version the lead time was relatively fast at 1-2 weeks from receipt of production order. That lead time can change significantly if the base part has limited availability.