A thumb screw is designed to be turned using a thumb and finger. Knurls on the side of the head improves the grip.
(10 pcs) M8-1.25 X 30mm, DIN 653, Metric, Thumb Screws, Knurled Flat Head, Low Type, Class 5.8 Steel, Zinc Plated
Slotted Thumb Screws High Type (DIN 465) in A1 Stainless Steel - Westfield Fasteners Ltd
M6 x 140mm Cap Head Screws (DIN 912) - Stainless Steel (A2)
10 Pack 8-32 x 1/2 Inch Threads 303 Stainless Steel Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated: : Industrial & Scientific
MISUMI Captive Screws & Bolts
M3 x 8mm Knurled Thumb Screws (DIN 464) - Black A1 Stainless Steel: Accu.co.uk: Precision Screws
BUUV 5pcs M3 M4 M5 Slotted Captive Hand Screw GB839 Knurled Thumb Screws with Reduced Shank 304 Stainless Steel Anti-Loose Locking (Size : M5 x 12) : Industrial & Scientific
M8 x 30mm Captive Knurled Thumb Screws High Type - A1 Stainless Steel
knurled thumb screw brass aluminum metal
M4 x 20mm Slotted Thumb Screws (DIN 465) - 303 Stainless Steel: Accu.co.uk: Precision Screws
HSCRSTAR M2x5mm 20pcs Stainless Steel Thumb Screws Plain Type Metric Knurled Head Manual Adjustment Screws, Silver: : Industrial & Scientific
M6 x 140mm Cap Head Screws (DIN 912) - 18-8 / 304 Stainless Steel: Accu.co.uk: Precision Screws
Bulk-buy Use Finger Nylon Tip Plastic Head Metric Press Knob M5 M6 M8 Thumb Bolt Screw price comparison
M8 x 10mm Socket Countersunk Screws (ISO 10642) - Marine Stainless Steel (A4)