| Part Number Ranges | Finishes | Finish Suffixes |
|---|---|---|
|
20000-24999 = Bolts 25000-31999 = Machine Screws 33000-34699 = Nuts 34700-34974 = Lock Washers 34975-34999 = Nuts 35000-39499 = Machine Screws 39500-40599 = Thread Formers 40600-41999 = Thread Cutters 42000-42639 = Tapping Screws 42640-42909 = Machine Screws 42910-43239 = Bolts 43240-43599 = Machine Screws 44700-44999 = Washers 45000-45199 = Spring Nuts 45200-45299 = Stamped Nuts 45300-45399 = Nuts 45600-49999 = Bolts 50000-51049 = Machine Screws 51050-53799 = Thread Cutters 53800-55665 = Machine Screws 55666-55859 = Nuts 55960-56099 = Tapping Screws 56100-56499 = Bolts 56900-56999 = Tapping Screws 57000-57999 = Machine Screws 58000-59999 = Bolts 60000-69999 = Rivets 72000-72199 = Cotter Pins 72200-72300 = Grooved Pins 72900-73399 = Straight Pins 73700-73799 = Taper Pins 73800-74099 = Clevis Pins 74100-74199 = Expansion Plugs 74200-74299 = Retaining Spring Clips 76000-76999 = Clevis Pins 87000-87999 = Fittings 87000-87199 = O-Rings 88350-88999 = Studs 89000-91999 = Set Screws 92000-92099 = Tapping Screws 93000-93999 = Studs 95000-95499 = Snap Studs & Items 95500-95999 = Nylon Straps 97000-97199 = Clevis Pins 97200-97399 = Clamps 97400-97799 = Snap Rings 300000-300499 = Machine Screws 300500-301379 = Bolts 301380-302314 = Machine Screws 302315-305999 = Bolts 306000-306499 = Machine Screws 350000-399999 = Special Parts |
S = Plain S2 = Raven (Phosphate & Oil) S3 = Black Japan S4 = Raven (Phosphate & Oil) and black paint S5 = Copper plate S6 = Nickel Plate S7 = Cadmium plate S8 = Zinc plate S7-8 = Cadmium-Zinc S9 = Zinc plate (Bright) S10 = Tinned S11 = Copper Coat S12 = Lacquer to match trim S13 = Chrome plated (Interior Parts) S14 = Nickel plate - Butler finish S15 = Black Oxidized S16 = Lead plate S18 = Case hardened S20 = Cement Coat S21 = Lacquer for identification S23 = Rustless (Stainless) steel - head polished S26 = Cadmium or zinc plate and enamel S27 = Screw blank S28 = Sterile coating Following finishes offer additional corrosion resistance: S32 = Black paint or zinc chromate primer S34 = Case hardened cadmium finish S35 = Zinc coat S36 = Zinc plate and Dichromate S37 = Chrome plated (Exterior Parts) S38 = Raven finish S39 = Cadmium plate S40 = Zinc plate S41 = Pre-galvainized coat S42 = Cadmium plate (Black) S43 = Zinc plate plus O.D. Chromate S45 = Chrome plate on Stainless S46 = Black Phenolic S47 = Chromium plate S48 = Cadmium/Tin plate S49 = Black Epoxy S50 = Cadmium plate & Blue Chromate S51 = Cadmium plate & Blue Chromate S91 = O-Ring material S92 = O-Ring material S93 = O-Ring material S94 = O-Ring material S100 = Special S101 = Special S102 = Special S103 = Special S104 = Special |
B = Black dye M = Non-electrolytic plating (Mechanically applied) X = Wax sealer (used to finish screw threads) |
The table above is a summary of the various designations Ford used to identify standard hardware parts and finishes immediately after the Model A era. The adoption and implementation of this system began during the Model A production years.
Balls, Bolts, Bumpers, Bushings, Caps, Clamps, Clevises, Clips, Fasteners, Fittings, Gaskets, Grommets, Inserts, Keys, Nuts, Pins, Plates, Plugs, Retainers, Rings, Rivets, Screws, Seals, Seats, Spacers, Springs, Staples, Straps, Studs, Tips, and Washers.