Continue Shopping “OPTIFLEX KNOB MALE 1/4-20” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal × OPTIFLEX KNOB MALE 1/4-20 $8.00 OPTIFLEX KNOB MALE 1/4-20 quantity $8.00 Update cart Cart totals Subtotal $8.00 Shipping Shipping costs are calculated during checkout. Total $8.00 Proceed to checkout