Metric Thumb Screws by UNICORP Metric/Standard-Stock/Custom, Round-Diamond Knurl Thumbscrews-20 finishes Official Site
Sortafast Hexcix Titanium Screws - Thumb Screws - 2pk (Metric) – Sortafast Industries
A guide to thumb screws
Thumb Screws Manufacturers, SS Thumb Screws, DIN 316 Thumb Screws Suppliers in India - Mahabali Steel Centre
Raised Knurled Head Screws 464
Thumbscrews MISUMI India
NB-315IFC-R, Thumb Screws - Thin Slotted Knurled Head, Stepped, Brass, NB-FC-SR/NB-FC-R, Hirosugi-Keiki
KIPP - Knurled Thumb Screws in steel or stainless steel, DIN 464, metric
A guide to thumb screws
M2/ M3/ M4/ M5/ M6 Knurled Head Thumb Screws Nuts Metric Nickel / Zinc Plated - China Thumb Screws Nuts and Thumbnuts
Thumb Screws Manufacturers, SS Thumb Screws, DIN 316 Thumb Screws Suppliers in India - Mahabali Steel Centre
Knurled Thumb Screws Thin Type DIN 653