Personalized Mechanic Nuts and Bolts Long Sleeve T-Shirt. Mechanic Nuts and Bolts Long Sleeve T-Shirt - Azalea, with "mechanic" underlined with a wrench and bedecked in nuts and bolts, are a unique gift design for professional and weekend mechanics! Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL