R-FF1-N-L-A4 Nylon frame fixing counersunk, stainless steel
R-FF1-N-L-DT Nylon frame fixing countersunk in corrosion-resistant coating
R-FF1-N-L Nylon frame fixing countersunk version - zinc plated
R-FF1-N-K-A4 Nylon frame fixing with collar hex head - stainless steel
R-FF1-N-K-DT Nylon frame fixing with collar hex head - zink flake
R-FF1-N-K Nylon frame fixing with collar hex head - zinc plated
R-FF1-N-K-DT-M Nylon frame fixing with collar hex head - zink flake
R-FF1-N-K-M Nylon frame fixing with collar hex head - zinc plated
